Quickly-assembled pump head low-pulsation roller body structure

Abstract

The utility model relates to peristaltic pump field, specifically disclose a quick -wearing type pump head low pulsation roller body structure, including roller frame, gyro wheel, gyro wheel axle, transmission main shaft and pin shaft five parts common constitute, the roller frame is 8 hole structure, and the round hole of installation transmission main shaft is set up in the central position, the gyro wheel is the integral design of ladder type, and is connected with the roller frame through the gyro wheel axle, transmission main shaft is passed into the roller frame center round hole, and is fixedly connected with the roller frame through the pin shaft, the gyro wheel is staggered installation with adjacent gyro wheel, forms two groups of gyro wheel group with phase difference. The utility model discloses compact structure design, small and exquisite, and the installation process is simple and quick, reduces the installation cost and time. Significantly reduce the pulsation in the fluid transmission, ensure the flow stability in the conveying process, improve the precision of fluid transmission.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic pump technology, specifically to a quick-install pump head low-pulsation roller body structure. Background Technology

[0002] Peristaltic pumps pump fluid by elastically squeezing and releasing the delivery hose. As the roller rotor rotates, a negative pressure is created inside the hose, causing the liquid to flow. However, during liquid transfer, pump heads in the same series can cause regular fluctuations (pulsations) in the transferred liquid. This is due to the characteristics of peristaltic pumps; since each pump delivers the volume between two adjacent rollers, pulsation occurs. High pulsation during liquid transfer leads to unstable flow, affecting precise control, and can also impact the piping system, shortening hose life.

[0003] Currently, various solutions are being attempted to address this issue. These include utilizing the principle of air compression to absorb pulsation, increasing the length of the outlet hose, or using external buffer devices (pulsation dampers) to reduce pipeline pulsation; and increasing the number of pump head rollers or using thinner hoses. While these solutions can reduce pulsation, they still have certain drawbacks and do not fundamentally solve the problem.

[0004] However, the flow rate adaptability of the pulsation damper is limited, and its ability to handle high-frequency pulsation is also limited. Secondly, increasing the number of pump head rollers will increase friction loss and energy consumption, and shorten the life of the hose. Finally, using a thinner hose will limit the transmission flow rate and restrict the applicable scenarios, making it unsuitable for high-flow-rate scenarios.

[0005] Therefore, there is an urgent need to develop a quick-installation pump head with a low-pulsation roller structure to effectively reduce the impact of pulsation on the pipeline system. Utility Model Content

[0006] This invention addresses the aforementioned problems in the prior art by providing a quick-installation pump head with a low-pulsation roller structure, which reduces the impact of pulsation on the pipeline system, extends the service life of hoses, and improves system stability and reliability.

[0007] To achieve the above objectives, this utility model proposes a quick-installation pump head low-pulsation roller body structure, comprising five parts: a roller frame, rollers, roller shafts, a transmission main shaft, and a pin. The roller frame has an 8-hole structure, with a central hole for mounting the transmission main shaft. The rollers are of a stepped, integrated design and are connected to the roller frame via roller shafts. The transmission main shaft passes through the central hole of the roller frame and is fixedly connected to the roller frame via a pin. The rollers are staggered with adjacent rollers, forming two sets of roller groups with a phase difference.

[0008] Preferably, the 8-hole structure of the roller frame is evenly distributed in a circular array.

[0009] Preferably, the stepped integrated design of the roller includes a large circumscribed circle diameter portion and a small diameter portion, the large circumscribed circle diameter portion is in contact with the hose, and the small diameter portion is used to connect with the roller shaft.

[0010] Preferably, the roller shaft has a cylindrical structure, with one end connected to the small-diameter portion of the roller and the other end connected to the roller frame via a bearing, and the roller rotates around the axis of the roller shaft.

[0011] Preferably, the transmission spindle has a cylindrical structure, with one end inserted into the central circular hole of the roller frame and the other end connected to an external power source; the diameter and length of the transmission spindle match the central circular hole of the roller frame.

[0012] Preferably, the pin is cylindrical and fixes the connection between the transmission main shaft and the roller frame; the diameter and length of the pin match the corresponding holes on the transmission main shaft and the roller frame.

[0013] Preferably, the two sets of rollers with a phase difference are arranged in an alternating manner to form a dual pipeline.

[0014] Therefore, this utility model proposes a quick-installation pump head low-pulsation roller body structure, the beneficial effects of which are as follows:

[0015] (1) The present invention has a compact structure and small size, and the installation process is simple and quick, which reduces the installation cost and time. It significantly reduces pulsation in fluid transmission, ensures the flow stability during the delivery process, and improves the accuracy of fluid transmission.

[0016] (2) This utility model reduces the impact of pulsation on the pipeline system, extends the service life of the hose, improves the stability and reliability of the system, and expands the application scenarios.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a quick-installation pump head with low pulsation roller body according to this utility model.

[0019] Figure Labels

[0020] 1. Roller frame; 2. Roller; 3. Roller shaft; 4. Drive shaft; 5. Pin; 6. Large circumscribed circle diameter section; 7. Small diameter section. Detailed Implementation

[0021] To make the technical solution, advantages, and objectives of this utility model clearer, the technical solution of the embodiments of this utility model will be clearly and completely described below. The described embodiments are some, but not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this application.

[0022] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0023] like Figure 1 As shown, the present invention provides a quick-installation pump head low-pulsation roller body structure, which is composed of five parts: roller frame 1, roller 2, roller shaft 3, transmission main shaft 4, and pin shaft 5.

[0024] The roller frame 1 has an 8-hole structure, with a round hole in the center for mounting the drive shaft 4. The overall shape and structure of the roller frame 1 ensure the stable installation and rotation of the roller 2.

[0025] The roller holder 1 has an 8-hole structure arranged in a uniform circular array for fixing rollers or other components. The positional accuracy of the central hole ensures the accurate installation of the drive spindle.

[0026] Roller 2 is a stepped, integrated design and is connected to roller frame 1 via roller shaft 3. The rollers are staggered with adjacent rollers, forming two sets of rollers with a phase difference. These two sets of rollers with a phase difference form a dual-pipeline system. The phase difference between the two sets of rollers allows the pulsations in the two pipelines to cancel each other out, thus achieving low-pulsation transmission.

[0027] The stepped, integrated design of roller 2 includes a large circumscribed circle diameter section 6 and a small diameter section 7. The large circumscribed circle diameter section 6 contacts the hose, while the small diameter section 7 is used to connect to the roller shaft 3. The surface shape and structure of roller 2 ensure uniform contact and pressure distribution with the hose.

[0028] The roller shaft 3 has a cylindrical structure. One end is connected to the small diameter part 7 of the roller 2, and the other end is connected to the roller frame 1 through a bearing, ensuring that the roller 2 can rotate around the axis of the roller shaft 3.

[0029] The transmission main shaft 4 has a cylindrical structure, with one end inserted into the central circular hole of the roller frame 1 and fixedly connected to the roller frame 1 through the pin 5.

[0030] The other end of the transmission spindle 4 is connected to an external power source. The diameter and length of the transmission spindle 4 match the central hole of the roller frame 1 to ensure a precise fit and stable connection with the central hole of the roller frame 1.

[0031] The pin 5 is cylindrical and fixes the connection between the transmission main shaft 4 and the roller frame 1. The diameter and length of the pin 5 match the corresponding holes on the transmission main shaft 4 and the roller frame 1 to prevent the transmission main shaft 4 from loosening or detaching during operation.

[0032] This utility model provides a quick-installation pump head low-pulsation roller body structure. The installation steps are as follows: the transmission main shaft 4 first passes through the central circular hole of the roller frame 1 and is fixed with the pin 5 to prevent the transmission main shaft 4 from separating from the roller frame 1; then, the roller 2 and the roller shaft 3 are installed in sequence, and the rollers are installed alternately with the adjacent rollers.

[0033] Therefore, this invention provides a quick-installation pump head with a low-pulsation roller structure. The design is compact and small in size, making installation simple and quick, thus reducing installation costs and time. The innovative design significantly reduces pulsation during fluid transmission, ensuring flow stability and improving fluid transmission accuracy. This invention reduces the impact of pulsation on the pipeline system, extends hose lifespan, improves system stability and reliability, and expands application scenarios.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A quick-installation pump head low-pulsation roller body structure, characterized in that, The device comprises five parts: a roller frame, rollers, roller shafts, a drive shaft, and a pin. The roller frame has an 8-hole structure with a central hole for mounting the drive shaft. The rollers are a stepped, integrated design and are connected to the roller frame via roller shafts. The drive shaft passes through the central hole of the roller frame and is fixedly connected to the roller frame via a pin. The rollers are staggered with adjacent rollers, forming two sets of rollers with a phase difference. The pin is cylindrical and secures the connection between the drive shaft and the roller frame. The diameter and length of the pin match the corresponding holes on the drive shaft and the roller frame.

2. The quick-installation pump head low-pulsation roller body structure according to claim 1, characterized in that, The roller frame has an 8-hole structure that is evenly distributed in a circular array.

3. The quick-installation pump head low-pulsation roller body structure according to claim 1, characterized in that, The roller's stepped, integrated design includes a large circumscribed circle diameter section and a small diameter section. The large circumscribed circle diameter section contacts the hose, while the small diameter section is used to connect to the roller shaft.

4. The quick-installation pump head low-pulsation roller body structure according to claim 1, characterized in that, The roller shaft has a cylindrical structure, with one end connected to the small-diameter part of the roller and the other end connected to the roller frame through a bearing. The roller rotates around the axis of the roller shaft.

5. The quick-installation pump head low-pulsation roller body structure according to claim 1, characterized in that, The transmission spindle has a cylindrical structure, with one end inserted into the central circular hole of the roller frame and the other end connected to an external power source; the diameter and length of the transmission spindle match the central circular hole of the roller frame.

6. The quick-installation pump head low-pulsation roller body structure according to claim 1, characterized in that, The two sets of rollers with a phase difference are arranged in an alternating manner to form a dual pipeline.

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