Cabinet type multi-pump-head peristaltic pump
By designing the fastening assembly in the peristaltic pump, and adjusting the gap between the fastening inner sleeve and the shunt pipe with the fastening ring and elastic material, the problem of the intimate connection between the hoses and nozzles of different diameters is solved, and the tight transmission of fluid is achieved, reducing the Leaks and wastes.
Patent Information
- Application Number
- CN202423192843.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing peristaltic pumps cannot achieve tight connections when replacing hoses and nozzles of different diameters, resulting in fluid leakage and waste.
A cabinet-type multi-pump head peristaltic pump is designed, using fastening components including a fastening jacket, a fastening inner sleeve and a fastening ring. Through the threaded connection and elastic characteristics of the fastening ring, the fastening inner sleeve and the shunt pipe are adjusted. The gap between the hoses and nozzles of different diameters are closely connected.
It effectively solves the problem of not tight connection between hoses and nozzles of different diameters, reduces fluid leakage and waste, and improves the reliability and efficiency of the system.
Smart Images
Figure CN222457720U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pump, in particular to a cabinet-type multi-pump head peristaltic pump. Background Art
[0002] With the continuous development of modern industry, the requirements for fluid transportation are getting higher and higher. Accurate and reliable fluid transportation is needed in many fields. Peristaltic pumps, with their unique working principles and advantages, have gradually become an ideal choice to meet the needs of fluid transportation. During the operation of the peristaltic pump, the driving pump drives the roller in the pump head to continuously squeeze the hose and the vibration caused by the operation of the driving pump, which can easily pull the hose and cause it to fall off. When replacing hoses and nozzles of different calibers, the hose and nozzle cannot be tightly connected, resulting in fluid leakage from the connection gap between the hose and nozzle, causing fluid waste and danger.
[0003] Therefore, how to tightly connect hoses and nozzles of different diameters is exactly the problem considered in this application. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a cabinet-type multi-pump head peristaltic pump, comprising a shell, a transport assembly, a drive assembly and a fastening assembly, the transport assembly comprising a shunt pipe and a nozzle, the fastening assembly comprising a fastening outer sleeve, a fastening inner sleeve and a fastening ring, the shell is used to accommodate the drive assembly, the transport assembly and the fastening assembly, the shunt pipe and the nozzle are respectively sleeved on both ends of the fastening inner sleeve, the fastening outer sleeve is sleeved on the outside of the fastening inner sleeve, the fastening ring is sleeved on the outside of one end of the fastening outer sleeve close to the shunt pipe, the outer diameter of the fastening outer sleeve close to the shunt pipe end is smaller than the outer diameter of the end close to the nozzle, the inner diameter of the fastening ring is the same as the minimum outer diameter of the fastening outer sleeve, and both the fastening inner sleeve and the fastening outer sleeve are elastic.
[0005] According to a further optimization of the utility model, a first thread is arranged on the inner surface of the fastening ring, a second thread is arranged on the outer surface of the fastening sleeve, and the first thread is threadably connected with the second thread.
[0006] Further optimization of the utility model is that an elastic protective sleeve is provided on the outer sleeve of the fastening inner sleeve near one end of the nozzle, a third thread is provided on the inner surface of the fastening inner sleeve near one end of the diversion tube, a fourth thread is provided on the connecting end of the diversion tube, and a fifth thread is provided on the connecting end of the nozzle, and both the fourth thread and the fifth thread are threadably connected to the third thread.
[0007] According to a further optimization of the utility model, the outer diameter of the fastening sleeve near the nozzle end is larger than the maximum outer diameter of the fastening sleeve thread.
[0008] In a further optimization of the utility model, a chamfer is provided at the maximum outer diameter of the fastening sleeve.
[0009] According to a further optimization of the utility model, the transport component also includes a first transport pipeline and a diverter, the first transport pipeline is fixedly connected to the diverter, and the diverter is fixedly connected to the diverter pipe.
[0010] According to a further optimization of the utility model, the transport component further comprises a second transport pipeline and a pressure-dividing pipeline, the pressure-dividing pipeline is fixedly connected to the second transport pipeline, and the pressure-dividing pipeline has an arc-shaped structure.
[0011] According to a further optimization of the utility model, the transport component further comprises a third transport pipeline and an L-shaped pipeline, and the L-shaped pipeline is fixedly connected to the third transport pipeline.
[0012] According to a further optimization of the utility model, a closing piece is provided at the discharge port of the diverter, and the discharge port of the diverter is rotatably connected to the closing piece.
[0013] According to further optimization of the utility model, the driving assembly includes a driving pump, a pump head and a vacuum pump. The driving pump and the pump head are fixedly connected to the inside of the shell, the driving pump is not in direct contact with the shell, and the vacuum pump is arranged on the side of one end of the second transport pipeline.
[0014] The utility model has the beneficial effect of tightly connecting hoses and nozzles of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a three-dimensional structural diagram of a cabinet-type multi-pump head peristaltic pump for practical use.
[0016] Figure 2 The figure is a side view structural diagram of a cabinet-type multi-pump head peristaltic pump of this utility model.
[0017] Figure 3 for Figure 2 A is a partial enlarged view of the figure.
[0018] Figure numbers: 1. Shell; 2. Transport assembly; 3. Drive assembly; 4. Fastening assembly; 21. Nozzle; 22. Diverter pipe; 23. Diverter; 24. First transport pipeline; 25. Second transport pipeline; 26. Pressure-dividing pipeline; 27. Third transport pipeline; 28. L-shaped pipeline; 31. Pump head; 32. Drive pump; 33. Vacuum pump; 41. Fastening ring; 42. Fastening outer sleeve; 43. Fastening inner sleeve; 411. First thread; 421. Second thread; 431. Third thread. DETAILED DESCRIPTION
[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.
[0020] Reference Figure 1-3 As shown, a cabinet-type multi-pump head peristaltic pump includes a shell 1, a transport component 2, a drive component 3 and a fastening component 4, the drive component 3 includes a drive pump 32, a pump head 31 and a vacuum pump 33, the transport component 2 includes a shunt pipe 22 and a nozzle 21, the fastening component 4 includes a fastening outer sleeve 42, a fastening inner sleeve 43 and a fastening ring 41, the shell 1 is used to accommodate the drive component 3, the transport component 2 and the fastening component 4, the shunt pipe 22 and the nozzle 21 are respectively sleeved on both ends of the fastening inner sleeve 43, the fastening outer sleeve 42 is sleeved on the outside of the fastening inner sleeve 43, the fastening ring 41 is sleeved on the outside of one end of the fastening outer sleeve 42 close to the shunt pipe 22, the outer diameter of the fastening outer sleeve 42 close to the shunt pipe 22 is smaller than the outer diameter of the end close to the nozzle 21, the inner diameter of the fastening ring 41 is the same as the minimum outer diameter of the fastening outer sleeve 42, and the fastening inner sleeve 43 and the fastening outer sleeve 42 are both elastic.
[0021] When the caliber of the diverter tube 22 does not match the inner diameter of the fastening inner sleeve 43, the fastening ring 41 moves from the end of the fastening outer sleeve 42 close to the nozzle 21 to the end of the fastening outer sleeve 42 close to the diverter tube 22 through linear motion. When the inner diameter of the fastening ring 41 is smaller than the outer diameter of the fastening outer sleeve 42, the fastening ring 41 applies an inward force to the fastening outer sleeve 42, causing the fastening outer sleeve 42 to elastically deform, thereby reducing the inner diameter of the fastening outer sleeve 42 at the deformation point. The fastening outer sleeve 42 applies an inward force to the fastening inner sleeve 43, thereby causing the fastening inner sleeve 43 to elastically deform and reduce the inner diameter, thereby reducing the gap between the fastening inner sleeve 43 and the diverter tube 22.
[0022] In the prior art, the usual peristaltic pump has the following defects and cannot be realized. When the shunt tube 22 of different calibers is replaced due to changes in fluid demand, the caliber of the shunt tube 22 does not match the caliber of the nozzle 21, resulting in falling off or being unable to be installed. The simple installation connection cannot meet the demand. The fastening assembly 4 can adjust the gap between the fastening inner sleeve 43 and the shunt tube 22 through the fastening ring 41, thereby realizing the connection between the shunt tubes 22 and the nozzles 21 of different calibers.
[0023] In the optimization, the inner surface of the fastening ring 41 is provided with a first thread 411, and the outer surface of the fastening sleeve 42 is provided with a second thread 421, and the first thread 411 is threadedly connected with the second thread 421;
[0024] The friction between the fastening ring 41 and the fastening sleeve 42 increases, making the fastening ring 41 not easy to loosen. The fastening ring 41 converts rotational motion into linear motion through the thread, and converts the vertical force into a component force along the inclined surface of the thread through the inclined plane principle, thereby reducing the actual required force and achieving precise displacement control at the same time, so that the fastening ring 41 can accurately control the inward force applied to the fastening sleeve 42, and the thread setting prevents the fastening ring 41 from moving and loosening due to tension.
[0025] In the optimization, an elastic protective sleeve is sleeved on the outer side of the fastening inner sleeve 43 near the end of the nozzle 21, a third thread 431 is provided on the inner surface of the fastening inner sleeve 43 near the end of the shunt pipe 22, a fourth thread is provided on the connecting end of the shunt pipe 22, and a fifth thread is provided on the connecting end of the nozzle 21, and both the fourth thread and the fifth thread are threadedly connected with the third thread 431;
[0026] When the fluid passes through and causes the internal pressure to rise, the friction between the threads increases, and at the same time the threads undergo elastic deformation to absorb part of the pressure change, reducing the risk of leakage and thus enhancing the sealing effect. The elastic protective sleeve protects the inelastic connection end of the nozzle 21, and the middle part of the fastening inner sleeve 43 is not specially treated. The elastic characteristics of the fastening inner sleeve 43 are used to absorb the force caused by the operation of the machine to protect the connection between the diverter pipe 22 and the nozzle 21.
[0027] In the optimization, the outer diameter of the end of the fastening sleeve 42 close to the nozzle 21 is larger than the maximum outer diameter of the thread of the fastening sleeve 42;
[0028] When the fastening ring 41 is in the fastening sleeve 42 close to one end of the nozzle 21, the fastening ring 41 generates an inward force on the fastening sleeve 42 to act on the nozzle 21 through the fastening inner sleeve 43. Since the nozzle 21 lacks elasticity, the long-term force will cause the nozzle 21 to be squeezed and damaged. When the fastening ring 41 moves to the middle position of the fastening sleeve 42, the fastening ring 41 does not generate an inward force on the end of the fastening sleeve 42 close to the diverter pipe 22. Therefore, the outer diameter of the fastening sleeve 42 close to the nozzle 21 is larger than the maximum outer diameter of the thread of the fastening sleeve 42. The fastening ring 41 starts to move from the maximum outer diameter of the fastening sleeve 42 close to the nozzle 21, reducing the useless action distance. When the fastening ring 41 rotates and moves to the maximum outer diameter of the fastening sleeve 42, it stops passively, preventing the fastening ring 41 from falling off from the fastening sleeve 42 due to rotation by external force while avoiding the fastening ring 41 from exerting force on the nozzle 21.
[0029] In the optimization, a chamfer is provided at the maximum outer diameter of the fastening sleeve 42;
[0030] When replacing the fastening sleeve 42, it is removed by a tool. The fastening sleeve 42 has no cutting position, which will cause the tool to slip on the thread of the fastening sleeve 42 and damage the thread, resulting in the thread blocking the fastening ring 41 from moving to the end of the fastening sleeve 42 close to the nozzle 21. Therefore, a chamfer is set at the maximum outer diameter of the fastening sleeve 42. When the tool is used to cut in when replacing the fastening component 4, the position can be found quickly and accurately, and at the same time, the stress distribution can be improved, thereby enhancing the stability and reliability of the overall structure.
[0031] In the optimization, the transport component 2 further includes a first transport pipeline 24 and a diverter 23, the first transport pipeline 24 is fixedly connected to the diverter 23, and the diverter 23 is fixedly connected to the diverter pipe 22;
[0032] The diverter 23 can be provided with a plurality of discharge ports. When the fluid is transported to the diverter 23, it will be diverted into a plurality of small flow fluids. The inertia of the fluid is reduced, and more precise flow control can be achieved under the action of the driving pump 32 and the pump head 31. At the same time, the pressure caused by the connection between the diverter pipe 22 and the nozzle 21 is also reduced. The diverter 23 is set to maintain high efficiency of fluid transportation while also being able to precisely control the flow.
[0033] In the optimization, the transport component 2 further includes a second transport pipeline 25 and a pressure-dividing pipeline 26, the pressure-dividing pipeline 26 is fixedly connected to the second transport pipeline 25, and the pressure-dividing pipeline 26 has an arc structure;
[0034] The pressure-dividing pipe 26 has an arc-shaped structure, which is used to absorb pressure shock when a pressure shock occurs and protect the transportation pipe. At the same time, it can be used as a handle support when disassembling the vacuum pump 33.
[0035] In the optimization, the transport component 2 further includes a third transport pipe 27 and an L-shaped pipe 28, and the L-shaped pipe 28 is fixedly connected to the third transport pipe 27;
[0036] The curved part of the L-shaped pipe 28 can make the fluid flow smoothly, reduce local resistance and reduce pressure loss, and can also play a buffering role to reduce the impact of the fluid on the pipe. At the same time, the L-shaped pipe 28 adapts to the spatial layout to provide a stable flow field. A flow meter can be installed at the curved part to measure the flow rate of the fluid, and a filter can also be installed to remove impurities in the fluid to protect the normal operation of the second pipe.
[0037] In the optimization, a closing piece is provided at the discharge port of the diverter 23, and the discharge port of the diverter 23 is rotatably connected to the closing piece;
[0038] By rotating the closing piece to control the number of discharge ports opened by the diverter 23, fine adjustment of the drainage flow rate can be achieved. When the closing piece isolates the discharge port from the diverter pipe 22, maintenance and repair can be carried out without affecting the fluid transportation.
[0039] In the optimization, the driving assembly 3 includes a driving pump 32, a pump head 31 and a vacuum pump 33. The driving pump 32 and the pump head 31 are fixedly connected to the inside of the housing 1. The driving pump 32 is not in direct contact with the housing 1. The vacuum pump 33 is arranged on the side of one end of the second transport pipe 25.
[0040] When external force acts on the shell 1, the self-vibration frequency of the driving pump 32 matches the vibration frequency of the external force of the shell 1. When the shell 1 vibrates, the driving pump 32 also starts to vibrate. The reaction force generated by the movement of the driving pump 32 will interact with the vibration of the shell 1, thereby reducing the influence of the outside of the shell 1 on the cabinet-type multi-pump head peristaltic pump. The driving pump 32 drives the pump head 31 to squeeze and release the shunt tube 22, causing negative pressure to form in the area, sucking in the upstream fluid. When the driving pump 32 reaches the upper limit, the vacuum pump 33 can be driven to cooperate with the driving pump 32 to enhance the suction force on the fluid and accelerate the transportation of the pipeline fluid to the pump head 31. For some fluids with higher viscosity and poorer fluidity, the negative pressure of the vacuum pump 33 can help the cabinet-type multi-pump head peristaltic pump to more effectively suck in the fluid and improve the conveying efficiency. At the same time, for volatile fluids and fluids sensitive to oxygen or moisture, the vacuum pump 33 can create the required vacuum environment during fluid transportation, reduce fluid volatilization losses, and ensure its purity and stability.
[0041] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A cabinet-type multi-pump head peristaltic pump, characterized in that: It includes a shell, a transport component, a drive component and a fastening component, the transport component includes a diverter pipe and a nozzle, the fastening component includes a fastening outer sleeve, a fastening inner sleeve and a fastening ring, the shell is used to accommodate the drive component, the transport component and the fastening component, the diverter pipe and the nozzle are respectively sleeved on both ends of the fastening inner sleeve, the fastening outer sleeve is sleeved on the outside of the fastening inner sleeve, the fastening ring is sleeved on the outside of one end of the fastening outer sleeve close to the diverter pipe, the outer diameter of the fastening outer sleeve close to the diverter pipe is smaller than the outer diameter of the end close to the nozzle, the inner diameter of the fastening ring is the same as the minimum outer diameter of the fastening outer sleeve, and the fastening inner sleeve and the fastening outer sleeve are both elastic.
2. A cabinet-type multi-pump head peristaltic pump according to claim 1, characterized in that: The inner surface of the fastening ring is provided with a first thread, the outer surface of the fastening sleeve is provided with a second thread, and the first thread is threadably connected with the second thread.
3. A cabinet-type multi-pump head peristaltic pump according to claim 1, characterized in that: An elastic protective sleeve is provided on the outer sleeve of the fastening inner sleeve near one end of the nozzle, a third thread is provided on the inner surface of the fastening inner sleeve near one end of the diverter tube, a fourth thread is provided on the connecting end of the diverter tube, and a fifth thread is provided on the connecting end of the nozzle, and both the fourth thread and the fifth thread are threadably connected to the third thread.
4. A cabinet-type multi-pump head peristaltic pump according to claim 1, characterized in that: The outer diameter of the fastening sleeve near the nozzle end is larger than the maximum outer diameter of the fastening sleeve thread.
5. A cabinet-type multi-pump head peristaltic pump according to claim 4, characterized in that: The maximum outer diameter of the fastening sleeve is provided with a chamfer.
6. A cabinet-type multi-pump head peristaltic pump according to claim 1, characterized in that: The transport component also includes a first transport pipeline and a diverter. The first transport pipeline is fixedly connected to the diverter, and the diverter is fixedly connected to the diverter pipe.
7. A cabinet-type multi-pump head peristaltic pump according to claim 1, characterized in that: The transport component also includes a second transport pipeline and a pressure-dividing pipeline, wherein the pressure-dividing pipeline is fixedly connected to the second transport pipeline, and the pressure-dividing pipeline has an arc structure.
8. The cabinet-type multi-pump head peristaltic pump according to claim 1, characterized in that: The transport component also includes a third transport pipeline and an L-shaped pipeline, and the L-shaped pipeline is fixedly connected to the third transport pipeline.
9. A cabinet-type multi-pump head peristaltic pump according to claim 6, characterized in that: A closing piece is provided at the discharge port of the diverter, and the discharge port of the diverter is rotatably connected to the closing piece.
10. The cabinet-type multi-pump head peristaltic pump according to claim 7, characterized in that: The driving assembly includes a driving pump, a pump head and a vacuum pump. The driving pump and the pump head are fixedly connected to the inside of the shell. The driving pump is not in direct contact with the shell. The vacuum pump is arranged on the side of one end of the second transport pipeline.