Multi-stage speed reduction peristaltic pump capable of meeting various water outlet flows

Abstract

The utility model relates to the technical field of peristaltic pumps, and discloses a multi-stage speed reduction peristaltic pump capable of meeting various water outlet flows, which comprises a motor, a speed reduction device, a peristaltic pump pipe, an interface component and a shell component, wherein an output shaft of the motor is coaxially connected with an input end of the speed reduction device; the speed reduction device comprises a base, a first steel shaft, a first rolling wheel, a second rolling wheel, a second steel shaft, a first rolling wheel frame and a second rolling wheel frame. According to the multi-stage speed reduction peristaltic pump capable of meeting various water outlet flows, the pump pipes with different pipe diameters and the adjustable speed reduction device are arranged on one peristaltic pump, so that the multiple different flow requirements can be met at the same time through one peristaltic pump, starting and stopping are controlled at the same time, liquid can be conveyed in a high-precision proportion, the use of a plurality of peristaltic pumps is avoided, and the cost is reduced. The equipment cost and the occupied area are reduced, the flow can be flexibly adjusted according to actual requirements by accurately calculating parameters such as the diameter of the roller carrier assembly and the size of the hose and arranging the speed reducer, and multiple purposes of one pump are achieved.

Description

Technical Field

[0001] This utility model relates to the field of peristaltic pump technology, specifically a multi-stage deceleration peristaltic pump that can meet various water flow rates. Background Technology

[0002] In existing peristaltic pump technology, most peristaltic pumps can only achieve single-flow liquid delivery, which is difficult to meet the needs of scenarios where the same equipment needs to deliver liquids of different flow rates at the same time. When multiple flow outputs are required, multiple peristaltic pumps are often required, which not only increases equipment cost and floor space, but also makes the system structure complex and inconvenient to operate and maintain.

[0003] Therefore, it is necessary to propose a multi-stage deceleration peristaltic pump that can meet various water flow rates. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-stage deceleration peristaltic pump that can meet various water flow rates. It has the advantages of being able to meet various different flow requirements, simultaneously control start and stop, and deliver liquids with high precision ratios, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a multi-stage reduction peristaltic pump that can meet various water flow rates, including a motor, a reduction gear, a peristaltic pump pipe, an interface component, and a housing component:

[0006] The output shaft of the motor is coaxially connected to the input end of the reduction device. The reduction device includes a base, a first steel shaft, a first roller, a second roller, a second steel shaft, a first roller frame, and a second roller frame. The base is fixed inside the pump head. The first steel shaft is connected to the output shaft of the motor. The first steel shaft is connected to the second steel shaft via gear transmission. The first roller frame is mounted on the first steel shaft. The second roller frame is mounted on the second steel shaft. The first roller is mounted on the first roller frame. The second roller is mounted on the second roller frame.

[0007] Preferably, the peristaltic pump tube includes a large peristaltic pump tube and a small peristaltic pump tube, which are installed inside the pump head and located below roller one and roller two. One end of the large peristaltic pump tube is connected to the inlet of the large tube and the other end is connected to the outlet of the large tube. One end of the small peristaltic pump tube is connected to the inlet of the small tube and the other end is connected to the outlet of the small tube.

[0008] Preferably, the outer casing component includes a middle cover and a top cover, the middle cover being fixed to the middle part of the pump head, and the top cover being fixed to the top of the middle cover.

[0009] Preferably, the reduction device further includes a reduction planetary gear assembly, and the reduction planetary gear assembly is installed between steel shaft one and steel shaft two.

[0010] Preferably, the motor and the speed reduction device are connected by a coupling.

[0011] Preferably, the first roller frame and the second roller frame are provided with mounting holes for mounting the first roller and the second roller, and the first roller and the second roller are mounted in the mounting holes by bearings.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This type of multi-stage deceleration peristaltic pump can meet various water flow rates. By setting pump pipes of different diameters and adjustable deceleration devices on a single peristaltic pump, it can simultaneously meet multiple different flow requirements and control start and stop. It can achieve high-precision proportional delivery of liquids, avoiding the use of multiple peristaltic pumps, reducing equipment costs and floor space. Through precise calculation of parameters such as roller frame assembly diameter and hose size and setting of deceleration devices, the flow rate can be flexibly adjusted according to actual needs, realizing multi-purpose use of one pump and improving the applicability and flexibility of the equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the large peristaltic pump tube and the small peristaltic pump tube of this utility model;

[0017] Figure 3 This utility model Figure 1 Internal structure diagram.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Motor; 2. Reduction gear; 210. Base; 220. Steel shaft one; 230. Roller one; 240. Roller two; 250. Steel shaft two; 260. Roller frame one; 270. Roller frame two; 3. Large pipe inlet; 4. Large pipe outlet; 5. Small pipe inlet; 6. Small pipe outlet; 7. Large peristaltic pump pipe; 8. Small peristaltic pump pipe; 9. Middle cover; 10. Top cover. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Please see Figure 1 , Figure 2 and Figure 3 A multi-stage reduction peristaltic pump capable of handling various water flow rates includes a motor 1, a reduction gear 2, a peristaltic pump tube, interface components, and a housing component.

[0023] The output shaft of motor 1 is coaxially connected to the input end of reduction gear 2. Reduction gear 2 includes a base 210, a first steel shaft 220, a first roller 230, a second roller 240, a second steel shaft 250, a first roller frame 260, and a second roller frame 270. The base 210 is fixed inside the pump head. The first steel shaft 220 is connected to the output shaft of motor 1 and is connected to the second steel shaft 250 via gears. The first roller frame 260 is mounted on the first steel shaft 220, and the second roller frame 270 is mounted on the second steel shaft 250. Roller 230 is mounted on roller frame 260, and roller 240 is mounted on roller frame 270. The reduction gear 2 also includes a reduction planetary gear assembly, which is mounted between steel shaft 220 and steel shaft 250. The motor 1 and the reduction gear 2 are connected by a coupling. Roller frame 260 and roller frame 270 are provided with mounting holes for mounting roller 230 and roller 240, and roller 230 and roller 240 are mounted in the mounting holes by bearings.

[0024] The output shaft of motor 1 is coaxially connected to the input end of reduction gear 2 via a coupling. When motor 1 rotates, it transmits torque to reduction gear 2.

[0025] When the ratio difference is large, a reduction planetary gear assembly can be installed between steel shaft 1 220 and steel shaft 2 250 to achieve differential rotation of the two sets of rollers and achieve the effect of two-stage reduction.

[0026] Furthermore: When steel shaft 1 220 and steel shaft 2 250 are connected by a set of reduction planetary gear assembly, the assembly includes a sun gear, planet gears and a ring gear. The sun gear is fixed to steel shaft 1 220, the planet gears are mounted on the planet carrier, and the ring gear is coaxially fixed to steel shaft 2 250. By adjusting the gear ratio (e.g., the number of teeth of the sun gear: the number of teeth of the ring gear = 1:1.5), the rotational speed of roller carrier 2 270 is 2 / 3 of that of roller carrier 1 260, thereby increasing the flow difference.

[0027] As a preferred technical solution of this utility model, the peristaltic pump tube includes a large peristaltic pump tube 7 and a small peristaltic pump tube 8. The large peristaltic pump tube 7 and the small peristaltic pump tube 8 are installed inside the pump head and located below roller 1 230 and roller 2 240. One end of the large peristaltic pump tube 7 is connected to the large pipe inlet 3 and the other end is connected to the large pipe outlet 4. One end of the small peristaltic pump tube 8 is connected to the small pipe inlet 5 and the other end is connected to the small pipe outlet 6.

[0028] By installing large peristaltic pump tubes 7 and small peristaltic pump tubes 8 of different diameters inside the pump head, and combining the reduction ratio of the reduction device 2, liquid delivery with different flow rate differences can be achieved. When the small peristaltic pump tube 8 of 4*2 is installed above and the large peristaltic pump tube 7 of 6*4 is installed below, the flow rate ratio is 1:4.

[0029] Furthermore, when the small peristaltic pump tube 8 is selected with an inner diameter of 2mm (4*2 represents an outer diameter of 4mm and an inner diameter of 2mm), its cross-sectional area S1=π×(2 / 2)2=πmm2; when the large peristaltic pump tube 7 is selected with an inner diameter of 4mm (6*4 represents an outer diameter of 6mm and an inner diameter of 4mm), its cross-sectional area S2=π×(4 / 2)2=4πmm2, and the flow ratio is S1:S2=1:4. At the same time, the roller frame 1 260 has a diameter of 12.8mm and a linear velocity V1=ω×6.4(mm / s), and the roller frame 2 270 has a diameter of 19.2mm and a linear velocity V2=ω×9.6(mm / s). Since the linear velocity is positively correlated with the extrusion frequency, the actual flow ratio is (S1×V1):(S2×V2)=(π×6.4ω):(4π×9.6ω)=1:6, thereby achieving a 6-fold flow difference.

[0030] As a preferred technical solution of this utility model, the outer shell component includes a middle cover 9 and a top cover 10. The middle cover 9 is fixed to the middle part of the pump head, and the top cover 10 is fixed above the middle cover 9.

[0031] The middle cover 9 is fixed to the middle of the pump head by bolts and is used to fix the position of the speed reduction device 2 and the peristaltic pump tube. The top cover 10 is fixed above the middle cover 9 by bolts and is used to cover and protect the motor 1, the speed reduction device 2 and the peristaltic pump tube, ensuring the sealing of the pump head and preventing liquid leakage.

[0032] During operation: Motor 1 inputs torque to reduction device 2, driving steel shaft 1 220 and steel shaft 250 to rotate, which in turn drives roller frame 1 260 and roller frame 270 to rotate. When roller 1 230 and roller 2 240 rotate, they squeeze the large peristaltic pump tube 7 and the small peristaltic pump tube 8, transporting liquid from the inlet to the outlet. By adjusting the pipe diameter inside the pump head and the size of the roller frame, and combining the corresponding motor reduction ratio and the matching motor 1, a dual-tube peristaltic pump with different flow rates can be realized in the required scenario. If multi-stage reduction is required, reduction device 2 can be added to transport liquid through more pump tubes, meeting the needs of multi-stage reduction combined with various flow rate outlet methods.

[0033] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage reduction peristaltic pump capable of meeting various water flow rates, comprising a motor (1), a reduction gear (2), a peristaltic pump pipe, interface components, and a housing component, characterized in that: The output shaft of the motor (1) is coaxially connected to the input end of the speed reduction device (2). The speed reduction device (2) includes a base (210), a steel shaft one (220), a roller one (230), a roller two (240), a steel shaft two (250), a roller frame one (260), and a roller frame two (270). The base (210) is fixed inside the pump head. The steel shaft one (220) is connected to the output shaft of the motor (1). The steel shaft one (220) is connected to the steel shaft two (250) through gear transmission. The roller frame one (260) is installed on the steel shaft one (220). The roller frame two (270) is installed on the steel shaft two (250). The roller one (230) is installed on the roller frame one (260). The roller two (240) is installed on the roller frame two (270).

2. A multi-stage reduction peristaltic pump capable of meeting various outlet flow rates according to claim 1, characterized in that: The peristaltic pump tube includes a large peristaltic pump tube (7) and a small peristaltic pump tube (8). The large peristaltic pump tube (7) and the small peristaltic pump tube (8) are installed inside the pump head and located below roller one (230) and roller two (240). One end of the large peristaltic pump tube (7) is connected to the large pipe inlet (3) and the other end is connected to the large pipe outlet (4). One end of the small peristaltic pump tube (8) is connected to the small pipe inlet (5) and the other end is connected to the small pipe outlet (6).

3. A multi-stage reduction peristaltic pump capable of meeting various outlet flow rates according to claim 1, characterized in that: The outer casing component includes a middle cover (9) and a top cover (10), the middle cover (9) being fixed to the middle part of the pump head, and the top cover (10) being fixed above the middle cover (9).

4. A multi-stage reduction peristaltic pump capable of meeting various outlet flow rates according to claim 1, characterized in that: The speed reduction device (2) further includes a speed reduction planetary gear assembly, which is installed between steel shaft one (220) and steel shaft two (250).

5. A multi-stage reduction peristaltic pump capable of meeting various outlet flow rates according to claim 1, characterized in that: The motor (1) and the speed reduction device (2) are connected by a coupling.

6. A multi-stage deceleration peristaltic pump capable of meeting various outlet flow rates according to claim 1, characterized in that: The roller frame one (260) and roller frame two (270) are provided with mounting holes for mounting roller one (230) and roller two (240), and roller one (230) and roller two (240) are mounted in the mounting holes by bearings.

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