Switching type power pump

Abstract

The invention relates to a switching type power pump. The switching type power pump comprises a first pump; a second pump; the driving motor is used for providing power; the meshing switching mechanism is in transmission connection with the driving motor and is used for selectively connecting the driving motor with the first pump or the second pump so as to drive the selected first pump or the second pump; the signal sensor is used for detecting the meshing position of the driving motor and the meshing switching mechanism; when the signal sensor detects that the meshing position of the driving motor and the meshing switching mechanism reaches a preset position, the driving motor is triggered to provide power output. According to the switching type power pump designed by the invention, the peristaltic pump and the plunger pump are integrated in one mechanism through structural design, and power switching of the two pumps is realized by utilizing one set of meshing switching mechanism, that is, the working requirements of the two pumps can be met only by arranging one driving motor, so that a power source is greatly saved, and the working efficiency is improved. And meanwhile, various advantages of saving space, reducing cost, improving efficiency and the like are realized.

Description

Technical Field

[0001] The invention relates to the technical field of fluid machinery, in particular to a switching power pump. Background Art

[0002] Fluid transportation plays a vital role in many industries, such as pharmaceuticals, chemicals, food, and biotechnology. In order to meet the needs of different fluid properties and application scenarios, various types of pumps have been developed, of which peristaltic pumps and plunger pumps are two common types. In actual applications, it is often necessary to select the appropriate pump type according to different fluid properties and application scenarios. For example, for the biopharmaceutical industry, a low-shear peristaltic pump is required to transport cell culture fluids; while for the chemical industry, a high-flow and high-pressure plunger pump is required to transport chemical raw materials.

[0003] The existing solution is usually to use independent peristaltic pumps and plunger pumps, switching them as needed. This approach has the following shortcomings:

[0004] (1) Large space occupied: Two independent pump systems need to be installed, which increases the size and weight of the equipment.

[0005] (2) High cost: It is necessary to purchase two sets of pumps and their supporting equipment, which increases the equipment cost.

[0006] (3) Inconvenient operation: The pump connection needs to be switched manually, which is cumbersome and inefficient. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a switchable power pump which greatly saves power source and achieves space saving and cost reduction.

[0008] In order to achieve the above object, the switchable power pump designed by the present invention comprises:

[0009] First pump; Second pump;

[0010] A driving motor for providing power;

[0011] an engagement switching mechanism, drivingly connected to the drive motor, for selectively connecting the drive motor to the first pump or the second pump to drive the selected first pump or the second pump;

[0012] A signal sensor, used for detecting the meshing position of the drive motor and the meshing switching mechanism;

[0013] When the signal sensor detects that the engagement position of the drive motor and the engagement switching mechanism reaches a predetermined position, the drive motor is triggered to provide power output.

[0014] In order to meet specific fluid delivery requirements, the first pump is a peristaltic pump and the second pump is a plunger pump.

[0015] In order to enable the first pump and the second pump to be selectively connected to the drive motor and driven, the drive shaft of the first pump is connected to the output shaft of the drive motor via a coupling; the drive shaft of the second pump is selectively connected to the output shaft of the drive motor via the engagement switching mechanism.

[0016] In order to make the installation layout of the first pump and the second pump more reasonable and compact, the driving shaft of the first pump is coaxially arranged with the output shaft of the driving motor; the driving shaft of the second pump is perpendicularly arranged with the output shaft of the driving motor.

[0017] In order to simply and effectively realize the switching of the driving motor power output between the first pump and the second pump, the meshing switching mechanism includes:

[0018] frame;

[0019] A meshing gear, coaxially and fixedly connected to the output shaft of the driving motor;

[0020] a transmission gear coaxially connected to a driving shaft of the second pump;

[0021] The selection mechanism is arranged on the frame and is used for driving the transmission gear to engage with or disengage from the meshing gear.

[0022] In order to make the switching action of the meshing switching mechanism more reliable and stable, the selection mechanism includes a cylinder, a base and an axial-shifting coupling. The driving shaft of the second pump is connected to the transmission gear through the axial-shifting coupling; the axial-shifting coupling is installed on the base; the cylinder is used to drive the base to engage or disengage the transmission gear with the meshing gear.

[0023] In order to make the meshing of the transmission gear and the meshing gear more accurate and reliable, a limit portion is provided on the frame, and the limit portion is located on the movement path of the base; when the transmission gear is meshed with the meshing gear, the base at least partially abuts against the limit portion.

[0024] In order to further optimize the structural layout of the equipment, it also includes a translational drive mechanism, which is arranged on the frame and is used to drive the plunger of the second pump to change the pump chamber volume of the second pump; the first pump is arranged horizontally and the second pump is arranged vertically; the translational drive direction of the translational drive mechanism is parallel to the axial direction of the drive shaft of the second pump.

[0025] In order to facilitate the installation and maintenance of the first pump, a mounting seat is provided on the frame, and the first pump is detachably mounted on the mounting seat.

[0026] In order to accurately detect the meshing position of the drive motor and the meshing switching mechanism, the signal sensor is arranged around the movement path of the base.

[0027] The switchable power pump designed by the present invention integrates the peristaltic pump and the plunger pump into one mechanism through structural design, and uses a set of meshing switching mechanisms to realize the power switching of the two pumps, that is, only one drive motor is needed to meet the working requirements of the two pumps, which greatly saves the power source, and at the same time achieves multiple advantages such as saving space, reducing costs and improving efficiency. The device has a wide range of applications, and the appropriate pump type can be selected according to different fluid properties and application scenarios. For example, a peristaltic pump can be selected for shear-sensitive fluids, and a plunger pump can be selected for fluids that require high flow and high pressure. This multifunctional and efficient design provides a flexible and economical solution for various fluid processing applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of a switchable power pump provided in an embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of the planar structure of a switchable power pump provided in an embodiment of the present application;

[0030] Figure 3 yes Figure 1 A top view of

[0031] Figure 4 yes Figure 3 The cutaway stereogram at AA in the middle;

[0032] Figure 5 yes Figure 3 A cutaway stereogram at the middle BB;

[0033] Figure 6 is a disassembly schematic diagram of the first pump provided in an embodiment of the present application;

[0034] Figure 7 It is a schematic diagram of the assembly of the casing provided in the embodiment of the present application.

[0035] Among them: a first pump 10, a second pump 20, a translation drive mechanism 21, a drive motor 30, an engagement switching mechanism 40, a frame 41, a limit portion 411, a mounting seat 412, an engagement gear 42, a transmission gear 43, a selection mechanism 44, a cylinder 441, a base 442, an axially shifting coupling 443, a signal sensor 50, a coupling 60, an isolation sleeve 70, a casing 80, and an isolation cover 81. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] Example 1.

[0038] like Figures 1 to 7 As shown, the switchable power pump described in this embodiment includes:

[0039] A first pump 10; a second pump 20;

[0040] A driving motor 30 for providing power;

[0041] an engagement switching mechanism 40, which is drivingly connected to the drive motor 30, and is used to selectively connect the drive motor 30 to the first pump 10 or the second pump 20 to drive the selected first pump 10 or the second pump 20;

[0042] A signal sensor 50, used to detect the meshing position of the drive motor 30 and the meshing switching mechanism 40;

[0043] When the signal sensor 50 detects that the meshing position between the drive motor 30 and the meshing switching mechanism 40 reaches a predetermined position, the drive motor 30 is triggered to provide power output.

[0044] Specifically, in this embodiment, in order to meet specific fluid delivery requirements, the first pump 10 is a peristaltic pump, and the second pump 20 is a plunger pump.

[0045] When working, the switchable power pump can be used in pharmaceutical production lines to process various types of liquid medicines. The operation process is as follows:

[0046] When it is necessary to deliver medical liquids with different characteristics, the operator can flexibly choose to use the first pump 10 (peristaltic pump) or the second pump 20 (plunger pump) through the engagement switching mechanism 40. Specifically, the engagement switching mechanism 40 connects the drive motor 30 to the designated pump according to the selection. During this switching process, the signal sensor 50 monitors the engagement position of the pump and the drive motor 30 in real time. Once the signal sensor 50 detects that the engagement position reaches the preset ideal state, it will immediately trigger the drive motor 30 to start. Subsequently, the selected pump (the first pump 10 or the second pump 20) starts working to efficiently deliver the corresponding medical liquid.

[0047] This design can quickly switch to the most suitable pump type according to the characteristics of different liquid medicines, which not only ensures the accuracy and safety of liquid medicine delivery, but also improves the flexibility and efficiency of the production line. Only one drive motor 30 is needed to meet the working requirements of two pumps, which greatly saves power sources and achieves multiple advantages such as saving space, reducing costs and improving efficiency.

[0048] It should be noted that the function of the signal sensor 50 is to detect the meshing position of the drive motor 30 and the meshing switching mechanism 40. Therefore, it can be implemented by using a variety of sensors or physical structures that can detect position or displacement. For example, a photoelectric sensor can be used as the signal sensor 50. Specifically, a light source and a photoelectric receiver can be set on the switching path of the meshing switching mechanism 40. When the drive motor 30 is meshed with the meshing switching mechanism 40, and the relevant components are moved to a specific position to block or expose light, the state of the photoelectric receiver will change, thereby judging the meshing state. Alternatively, a micro switch can be set on the switching path of the meshing switching mechanism 40 as the signal sensor 50, that is, when the drive motor 30 is meshed with the meshing switching mechanism 40, and the relevant components are moved to a specific position, the micro switch will be triggered, thereby judging the meshing state.

[0049] In some embodiments, Figure 4 and Figure 5 As shown, the driving shaft of the first pump 10 is transmission-connected to the output shaft of the driving motor 30 via a coupling 60 ; the driving shaft of the second pump 20 is selectively transmission-connected to the output shaft of the driving motor 30 via the meshing switching mechanism 40 .

[0050] In specific implementation, a coupling 60 is selected to connect the drive shaft of the first pump 10 and the output shaft of the drive motor 30. This direct connection method can ensure that the first pump 10 (peristaltic pump) continues to work, which eliminates additional transmission components and makes the overall structure more concise and compact; and the drive shaft of the second pump 20 (plunger pump) can be connected by Figure 5 The meshing switching mechanism 40 shown is selectively connected to the output shaft of the driving motor 30, that is, when the second pump 20 is not needed, the power of the driving motor 30 will not be transmitted to the second pump 20, thereby saving energy.

[0051] In this embodiment, if Figure 2As shown, the driving shaft of the first pump 10 is coaxially arranged with the output shaft of the driving motor 30; the driving shaft of the second pump 20 is perpendicularly arranged with the output shaft of the driving motor 30. That is, the coaxial arrangement can make the axes of the first pump 10 and the driving motor 30 coincide, reducing the occupied space and making the structure of the whole device more compact, while the vertical arrangement can make the installation position of the second pump 20 more flexible, for example, it can be installed below the driving motor 30, so as to make full use of the space.

[0052] In some embodiments, Figure 2 , Figure 4 and Figure 5 As shown, the engagement switching mechanism 40 includes:

[0053] Frame 41;

[0054] The meshing gear 42 is coaxially fixedly connected to the output shaft of the driving motor 30;

[0055] A transmission gear 43, coaxially connected to the driving shaft of the second pump 20;

[0056] The selection mechanism 44 is disposed on the frame 41 and is used to drive the transmission gear 43 to engage with or disengage from the engagement gear 42 .

[0057] In specific implementation, the frame 41, as the supporting structure of the meshing switching mechanism 40, can be made of metal materials (for example, aluminum alloy or stainless steel), and mounting holes or mounting grooves can be set on the frame 41 for fixing other components, such as the drive motor 30, the first pump 10, the second pump 20, the selection mechanism 44, etc.; and the meshing gear 42 and the transmission gear 43 are bevel gears with matching numbers of teeth. In this way, when switching different pumps, the selection mechanism 44 can use a cylinder to drive a slider, and the slider drives the transmission gear 43 to move axially, thereby achieving meshing or disengagement with the meshing gear 42, so as to facilitate power switching between the first pump 10 and the second pump 20 to meet different fluid delivery requirements.

[0058] In one embodiment, if Figure 1 , Figure 4 and Figure 5 As shown, the selection mechanism 44 includes a cylinder 441, a base 442 and an axially shifting coupling 443, and the driving shaft of the second pump 20 is connected to the transmission gear 43 through the axially shifting coupling 443; the axially shifting coupling 443 is installed on the base 442; the cylinder 441 is used to drive the base 442 to make the transmission gear 43 engage or disengage with the meshing gear 42.

[0059] During specific implementation, the stroke of the cylinder 441 is selected according to the distance that the transmission gear 43 needs to move.

[0060] When it is necessary to transmit the power of the driving motor 30 to the second pump 20, the control system will control the cylinder 441 to extend the piston rod, pushing the base 442 to move in the direction of the meshing gear 42. The movement of the base 442 will drive the axial coupling 443 and the transmission gear 43 to move together, so that the transmission gear 43 is meshed with the meshing gear 42. At this time, the power of the driving motor 30 can be transmitted to the second pump 20 through the meshing gear 42 and the transmission gear 43 to drive it to work.

[0061] When the power connection between the drive motor 30 and the second pump 20 needs to be disconnected, the control system controls the cylinder 441 to retract the piston rod, pulls the base 442 to move away from the meshing gear 42, and the movement of the base 442 drives the shaft-shifting coupling 443 and the transmission gear 43 to move together, so that the transmission gear 43 is disengaged from the meshing gear 42. At this time, the power of the drive motor 30 will not be transmitted to the second pump 20.

[0062] In this embodiment, the control of the cylinder 441 is relatively simple, and the cylinder 441, the base 442 and the shaft-shifting coupling 443 are all standard mechanical components, which are easy to maintain and low in cost.

[0063] In some embodiments, Figure 1 and Figure 2 As shown, a limiting portion 411 is provided on the frame 41 , and the limiting portion 411 is located on the movement path of the base 442 ; when the transmission gear 43 is meshed with the meshing gear 42 , the base 442 at least partially abuts against the limiting portion 411 .

[0064] In specific implementation, the limiting portion 411 can be designed as a guiding limiting groove structure, the shape of the groove structure can match a protrusion or a slider on the base 442. When the base 442 moves linearly under the drive of the cylinder 441, the protrusion or the slider will slide along the groove structure, thereby ensuring the movement direction and position accuracy of the base 442. At the same time, the depth of the groove structure can be designed according to the moving distance required for the transmission gear 43 to engage with the meshing gear 42, that is, when the base 442 moves to a predetermined position, the protrusion or the slider thereon will contact the bottom of the groove structure, thereby limiting the further movement of the base 442 and ensuring the precise engagement of the transmission gear 43 with the meshing gear 42.

[0065] In some embodiments, Figure 1 and Figure 2As shown, it also includes a translation drive mechanism 21, which is arranged on the frame 41 and is used to drive the plunger of the second pump 20 to change the pump chamber volume of the second pump 20; the first pump 10 is horizontally arranged, and the second pump 20 is vertically arranged; the translation drive direction of the translation drive mechanism 21 is parallel to the axial direction of the driving shaft of the second pump 20.

[0066] In specific implementation, the translation drive mechanism 21 can be a screw lifting structure, an electric lifting structure or a cylinder lifting structure, thereby driving the plunger of the second pump 20 to reciprocate to change the pump chamber volume of the second pump 20, thereby realizing the suction and discharge of liquid, so that the plunger pump 20 can work normally.

[0067] In some embodiments, Figure 2 and Figure 6 As shown, the frame 41 is provided with a mounting seat 412, and the first pump 10 is detachably mounted on the mounting seat 412. In specific implementation, a buckle structure can be provided on the mounting seat 412, and a corresponding slot or protrusion can be provided on the base of the first pump 10, and the first pump 10 can be fixed on the mounting seat 412 by the buckle. This detachable installation method can enhance the flexibility of the device. For example, different models or specifications of the first pump 10 can be replaced according to different fluid delivery requirements, such as replacing a peristaltic pump with a different flow rate or pressure.

[0068] In addition, in order to protect the equipment when the first pump 10 is removed for maintenance or not used for a long time, an isolation sleeve 70 can also be provided. When the first pump 10 is removed, the isolation sleeve 70 can be assembled on the mounting seat 412 to avoid exposure of moving parts, prevent dust or foreign matter from entering, and play a certain safety protection role. Figure 7 As shown, a guard plate can also be installed on the frame 41 to form a casing 80. The casing 80 can isolate the internal components of the switchable power pump, such as the motor, gears, pump, etc., from the external environment to prevent the operator from accidentally contacting the moving parts or live parts. In addition, an isolation cover 81 can also be hinged on the casing 80 to cover the first pump 10, thereby improving the aesthetics and grade of the product.

[0069] In some embodiments, Figure 5 As shown, the signal sensor 50 is arranged around the movement path of the base 442. The movement of the base 442 directly reflects the state of the meshing switching mechanism 40, that is, whether the transmission gear 43 is meshed with the meshing gear 42. The signal sensor 50 is arranged around the movement path of the base 442, and the position or displacement of the base 442 can be directly detected, so as to accurately judge the state of the meshing switching mechanism 40 and provide a reliable feedback signal for the control system.

[0070] The switchable power pump provided in this embodiment integrates the peristaltic pump and the plunger pump into one mechanism through structural design, and uses a set of meshing switching mechanisms to achieve power switching of the two pumps, that is, only one drive motor is required to meet the working requirements of the two pumps, which greatly saves the power source, and at the same time achieves multiple advantages such as saving space, reducing costs and improving efficiency. The device has a wide range of applications, and the appropriate pump type can be selected according to different fluid properties and application scenarios. For example, a peristaltic pump can be selected for shear-sensitive fluids, and a plunger pump can be selected for fluids that require high flow and high pressure. This multifunctional and efficient design provides a flexible and economical solution for various fluid processing applications.

[0071] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0072] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A switchable power pump, characterized in that: include: First pump; Second pump; A driving motor for providing power; an engagement switching mechanism, drivingly connected to the drive motor, for selectively connecting the drive motor to the first pump or the second pump to drive the selected first pump or the second pump; A signal sensor, used for detecting the meshing position of the drive motor and the meshing switching mechanism; When the signal sensor detects that the engagement position of the drive motor and the engagement switching mechanism reaches a predetermined position, the drive motor is triggered to provide power output.

2. The switchable power pump according to claim 1, characterized in that: The first pump is a peristaltic pump, and the second pump is a plunger pump.

3. The switchable power pump according to claim 2, characterized in that: The driving shaft of the first pump is transmission-connected to the output shaft of the driving motor via a coupling; the driving shaft of the second pump is selectively transmission-connected to the output shaft of the driving motor via the meshing switching mechanism.

4. The switchable power pump according to claim 3, characterized in that: The driving shaft of the first pump is coaxially arranged with the output shaft of the driving motor; the driving shaft of the second pump is perpendicularly arranged with the output shaft of the driving motor.

5. The switchable power pump according to claim 2, 3 or 4, characterized in that: The meshing switching mechanism comprises: frame; A meshing gear, coaxially and fixedly connected to the output shaft of the driving motor; a transmission gear coaxially connected to a driving shaft of the second pump; The selection mechanism is arranged on the frame and is used for driving the transmission gear to engage with or disengage from the meshing gear.

6. The switchable power pump according to claim 5, characterized in that: The selection mechanism includes a cylinder, a base and an axially shifting coupling, through which the driving shaft of the second pump is connected to the transmission gear; the axially shifting coupling is mounted on the base; the cylinder is used to drive the base to engage or disengage the transmission gear with the meshing gear.

7. The switchable power pump according to claim 6, characterized in that: The frame is provided with a limiting portion, and the limiting portion is located on the movement path of the base; when the transmission gear is meshed with the meshing gear, the base at least partially abuts against the limiting portion.

8. The switchable power pump according to claim 5, characterized in that: It also includes a translational drive mechanism, which is arranged on the frame and is used to drive the plunger of the second pump to change the pump chamber volume of the second pump; the first pump is arranged horizontally and the second pump is arranged vertically; the translational drive direction of the translational drive mechanism is parallel to the axial direction of the drive shaft of the second pump.

9. The switchable power pump according to claim 5, characterized in that: The frame is provided with a mounting seat, and the first pump is detachably mounted on the mounting seat.

10. The switchable power pump according to claim 6, characterized in that: The signal sensor is arranged around the movement path of the base.

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