蠕动泵
By combining the friction drive component with the extrusion roller, the vibration and noise problems caused by gear meshing in peristaltic pumps are solved, thereby improving the stability and precision of the equipment, simplifying assembly and maintenance, and expanding its application range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SKOOCOM ELECTRONICS CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing peristaltic pumps suffer from vibration and noise problems caused by gear meshing, which affect the stability and accuracy of the equipment, limit their application in noise and vibration sensitive environments, and the complex gear transmission structure increases production and maintenance costs.
The design combines friction drive components with extrusion rollers to replace traditional gear transmission. The friction drive components drive the rotating frame and extrusion rollers, achieving smooth linkage and avoiding the impact force during gear meshing, thus reducing vibration and noise.
It effectively reduces vibration and noise during operation, improves the stability and accuracy of the equipment, simplifies the assembly process, and reduces production and maintenance costs. It is suitable for noise and vibration sensitive scenarios such as medical testing and high-precision experimental analysis.
Smart Images
Figure CN224515352U_ABST
Abstract
Claims
1. A peristaltic pump characterized by, include: The pump housing (10) has a receiving cavity (11) and an inlet (12) communicating with the receiving cavity (11). A rotating frame (20) is rotatably disposed in the receiving cavity (11), and the rotating frame (20) is rotatably connected to a squeezing roller (21). A delivery pipe (30) is arranged around the circumference of the rotating frame (20) and squeezed between the squeeze roller (21) and the inner wall of the receiving cavity (11), and extends from the inlet (12) to the outside of the pump housing (10). The rotating frame (20) rotates to cause the squeeze roller (21) to roll and squeeze the delivery pipe (30) so that liquid flows in the delivery pipe (30). The friction drive (40) is coupled to the outer wall of the extrusion roller (21) or the rotating frame (20), and the power unit drives the friction drive (40) to rotate and causes the rotating frame (20) to rotate.
2. The peristaltic pump of claim 1, wherein: Multiple sets of the extrusion rollers (21) are arranged around the circumferential direction of the rotating frame (20), and the friction drive (40) is located in the middle of the multiple sets of extrusion rollers (21).
3. The peristaltic pump of claim 2, wherein: The friction drive (40) is a cylindrical rod, and the axial direction of the friction drive (40) is arranged parallel to the axial direction of the extrusion roller (21).
4. The peristaltic pump of claim 1, wherein: The rotating frame (20) includes a lower turntable (22) and an upper turntable (23). The two ends of the extrusion roller (21) are rotatably disposed between the lower turntable (22) and the upper turntable (23). The roller body of the extrusion roller (21) protrudes from the edge of the lower turntable (22) and the upper turntable (23).
5. The peristaltic pump of claim 4, wherein: The upper turntable (23) and the lower turntable (22) are connected by a shaft (24), the extrusion roller (21) is rotatably mounted on the shaft (24), and the friction drive (40) passes through a hole in the middle of the lower turntable (22).
6. The peristaltic pump according to claim 4, characterized in that: The pump housing (10) includes an upper housing (13) and a lower housing (14). The opening surfaces of the upper housing (13) and the lower housing (14) are engaged and form a detachable fit. The receiving cavity (11) is formed by the chamber enclosed between the upper housing (13) and the lower housing (14). The rotating frame (20) is rotatably constrained between the upper housing (13) and the lower housing (14).
7. The peristaltic pump of claim 6, wherein: The upper housing (13) is provided with a cavity (131) for accommodating the upper turntable (23). A limiting protrusion (132) is provided in the middle of the cavity (131). A limiting groove (231) is provided at the center of the upper turntable (23) to form an insertion fit with the upper turntable (23).
8. The peristaltic pump of claim 7, wherein: The lower turntable (22) has a first sealing ring (221) on the mating surface with the lower housing (14), and the upper turntable (23) has a second sealing ring (232) on the mating surface with the upper housing (13).
9. The peristaltic pump of claim 6, wherein: The upper housing (13) has a positioning notch (133) at the opening edge, and the lower housing (14) has a positioning protrusion (141) at the opening edge. When the upper housing (13) and the lower housing (14) are joined, the positioning protrusion (141) of the upper housing (13) extends into the positioning notch (133).
10. The peristaltic pump of claim 9, wherein: The upper housing (13) and the lower housing (14) are connected by a keyway to form a plug-in fit. The upper housing (13) and the lower housing (14) are provided with locking holes on the side away from the positioning notch (133) and the positioning protrusion (141), and fastening screws are provided in the locking holes.