WO2023016141A1

WO2023016141A1 - Peristaltic pump, and dispensing system having same

Info

Publication number: WO2023016141A1
Application number: PCT/CN2022/103779
Authority: WO
Inventors: 鲍鹏飞; 胡庆壮
Original assignee: 杭州神林电子有限公司
Priority date: 2021-08-10
Filing date: 2022-07-05
Publication date: 2023-02-16
Also published as: CN113669237A

Abstract

A peristaltic pump and a dispensing system having same. The peristaltic pump comprises a drive assembly (10) and a pump head assembly (20) detachably mounted on the drive assembly (10), wherein the drive assembly (10) comprises an electric motor (1), a drive portion housing (2) and a gear transmission set (3), the electric motor (1) and the pump head assembly (20) being mounted on one side of the drive portion housing (2), and the gear transmission set (3) being mounted on the other side thereof; and the pump head assembly (20) comprises an interface adapter (4), a pump shell (5), a roller assembly (6) and a pump pipe (8), the interface adapter (4) being mounted on the pump shell (5), the roller assembly (6) being mounted between the interface adapter (4) and the pump shell (5) and connected to the gear transmission set (3) in a transmission manner, the electric motor (1) controlling the roller assembly (6) to rotate by means of the gear transmission set (3), and the pump pipe (8) being arranged between the pump shell (5) and the roller assembly (6) and having two ends connected to the interface adapter (4). The peristaltic pump has a small volume, which is convenient for assembly and maintenance. The dispensing system having the pump can prevent liquid leakage caused by the breaking of the pump pipe.

Description

A peristaltic pump and delivery system with the pump

technical field

The invention relates to the technical field of fluid delivery pumps, in particular to a peristaltic pump and a delivery system with the pump.

Background technique

Peristaltic pump is a new type of fluid delivery pump after rotor pump, centrifugal pump, diaphragm pump, etc. It is being widely promoted and applied in various industries such as medical treatment, medicine, food, beverage, chemical industry, and smelting. When the peristaltic pump works, it relies on the roller assembly to rotate arc extrusion or the briquetting assembly to squeeze the elastic pump tube in a serpentine straight line. The roller assembly or briquetting assembly needs more than two rollers or briquetting blocks to squeeze the elastic pump tube to deliver fluid.

technical problem

Existing peristaltic pumps have certain defects:

1. The motor and pump components of conventional peristaltic pumps are arranged on opposite sides of the same axis, and the overall thickness is too large.

2. After the conventional peristaltic pump has been working for a long time, it is maintained by removing the pump cover and replacing the pump tube, and the overall assembly is more complicated.

In addition, most of the existing household appliances (such as washing machines and dishwashers) with dispensing systems need to configure a liquid delivery pump and related control system for the liquid storage box to realize automatic dispensing of detergent. It is inconvenient to use a conventional peristaltic pump. Maintenance; and when the pump tube of the peristaltic pump is broken, the detergent is easy to leak outside the appliance.

technical solution

The purpose of the present invention is to solve the problems in the prior art, and propose a peristaltic pump and a delivery system with the pump. The overall thickness of the peristaltic pump is thin, which is convenient for assembly and maintenance; Problems causing liquids to leak outside the appliance.

To achieve the above object, the present invention proposes a peristaltic pump, the peristaltic pump includes a drive assembly, and a pump head assembly detachably mounted on the drive assembly, the drive assembly includes a motor, a drive housing and a gear transmission A motor and a pump head assembly are installed on one side of the drive part casing, and a gear transmission group is installed on the other side of the drive part casing. The pump head assembly includes an interface adapter, a pump casing, a roller Wheel assembly and pump tube, the interface adapter is installed on the pump casing, the roller assembly is installed between the interface adapter and the pump casing, and is connected to the gear transmission group, and the motor passes through the gear transmission group The rotation of the roller assembly is controlled, the pump tube is arranged between the pump casing and the roller assembly, and both ends are connected to the interface adapter.

Preferably, the drive assembly and the pump head assembly are snap-fit connected, the bottom of the interface adapter has a first protruding edge, the top of the pump casing has a second protruding edge, and the drive part housing The outer wall is provided with a first positioning card frame and a second positioning card frame respectively adapted to the first protruding edge and the second protruding edge. One end is a closed end, and the other end has an opening for the first protruding edge and the second protruding edge to enter.

Preferably, the anti-dropping slot is an arc slot, and the openings of the first positioning frame and the second positioning frame are located at opposite ends.

As a preference, a positioning plate is also provided on the pump casing, a locking groove is provided on the positioning plate, a fixing seat and a locking piece are also provided on the driving part housing, and one end of the locking piece is connected to the fixing seat connected, the other end of the locking member matches the locking groove to prevent the first protruding edge and the second protruding edge from coming out of the first positioning card frame and the second positioning card frame.

Preferably, the interface adapter is fastened and connected with the pump casing to form the outer casing of the pump head assembly, the two sides of the interface adapter are symmetrically provided with buckles, and the two sides of the pump casing are symmetrically provided with The card slot that the buckle fits into.

As a preference, the driving gear of the gear transmission set is connected with the drive shaft of the motor, the center of the roller assembly is provided with a roller drive shaft, and one end of the roller drive shaft is connected to the driven gear of the gear transmission set The other end is plugged with the roller bracket of the roller assembly for transmission.

Preferably, the drive part housing includes a drive part outer shell and a drive part back cover, the drive part outer shell and the drive part back cover are connected by several fasteners, and a gear for installation is formed between the two In the chamber of the transmission group, the outer casing of the driving part is provided with a central hole into which the roller drive shaft of the roller assembly can be inserted.

The present invention also proposes a dosing system, which is equipped with the above-mentioned peristaltic pump.

Preferably, the delivery system further includes a liquid delivery module, the liquid delivery module includes a liquid delivery module housing and a liquid storage box, the drive assembly of the peristaltic pump is arranged on the liquid delivery module housing, the storage box The liquid box is installed in the shell of the liquid injection module, and the side of the shell of the liquid injection module facing the liquid storage box has a liquid storage box groove for the liquid storage box to be placed in, and the pump head assembly of the peristaltic pump is arranged on the In the chamber formed between the liquid storage box and the shell of the liquid injection module, the liquid storage box is provided with a joint assembly connected with the interface adapter of the peristaltic pump.

The present invention also proposes a dispensing system, the dispensing system also includes a liquid dispensing module, the liquid dispensing module includes a liquid dispensing module shell and a liquid storage box, the driving assembly of the peristaltic pump is arranged in the liquid dispensing module The pump head assembly of the peristaltic pump is arranged on the liquid storage box, the liquid storage box is installed in the shell of the liquid injection module, and the side of the liquid injection module shell facing the liquid storage box has a The liquid storage box groove where the liquid box is placed, the pump head assembly is installed on the side of the liquid storage box facing the liquid storage box groove, the pump casing of the pump head assembly is arranged on the liquid storage box, and the pump casing is also A sealing plate is installed, and a chamber for accommodating the interface adapter and the roller assembly is formed between the two.

Beneficial effect

Beneficial effects of the present invention:

1. The motor and pump components adopt the structure arranged side by side on the same side, the overall structure is compact and the thickness is smaller.

2. The overall detachable pump head assembly is adopted, which is convenient for the overall disassembly of the pump head assembly to replace the pump tube.

3. The dispensing system with the peristaltic pump can avoid the problem that detergent and other liquids accidentally flow out of the electrical appliance due to damage to the pump tube.

The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a kind of peristaltic pump of the present invention;

Fig. 2 is a front view structural schematic diagram of a peristaltic pump of the present invention;

Fig. 3 is a schematic cross-sectional view along AA direction of Fig. 2;

4 is a schematic structural view of a drive assembly of a peristaltic pump of the present invention;

5 is an exploded schematic diagram of a drive assembly of a peristaltic pump of the present invention;

6 is a schematic structural view of a pump head assembly of a peristaltic pump of the present invention;

7 is an exploded schematic diagram of a pump head assembly of a peristaltic pump of the present invention;

Fig. 8 is a three-dimensional structural schematic diagram of Embodiment 1 of a dispensing system of the present invention;

Fig. 9 is a schematic front view of Embodiment 1 of a dispensing system of the present invention;

Fig. 10 is a schematic cross-sectional view along the BB direction of Fig. 9;

Fig. 11 is an exploded schematic diagram of Embodiment 1 of a delivery system of the present invention;

Fig. 12 is a schematic front view of Embodiment 2 of a dispensing system of the present invention;

Fig. 13 is a schematic cross-sectional view taken along CC direction of Fig. 12;

Fig. 14 is an exploded schematic diagram of Embodiment 2 of a delivery system of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Referring to Fig. 1 to Fig. 7, a peristaltic pump of the present invention includes a drive assembly 10 and a pump head assembly 20 detachably mounted on the drive assembly 10, the drive assembly 10 includes a motor 1, a drive part housing Body 2 and gear transmission group 3, motor 1 and pump head assembly 20 are installed on one side of the drive part housing 2, and gear transmission group 3 is installed on the other side of the drive part housing 2, the pump head The assembly 20 includes an interface adapter 4, a pump housing 5, a roller assembly 6 and a pump tube 8, the interface adapter 4 is installed on the pump housing 5, and the roller assembly 6 is installed on the interface adapter 4 and the pump tube 8. between the pump casings 5 and is connected to the gear transmission group 3, the motor 1 controls the rotation of the roller assembly 6 through the gear transmission group 3, the pump tube 8 is arranged between the pump casing 5 and the roller assembly 6, and Both ends are connected to the interface adapter 4 .

Further, referring to FIG. 3 to FIG. 7 , the drive assembly 10 is snap fitly connected with the pump head assembly 20 , the bottom of the interface adapter 4 has a first protruding edge 42 , and the top of the pump casing 5 has a The second protruding edge 51, the outer wall of the drive part housing 2 is provided with a first positioning card frame 211 and a second positioning card frame 212 respectively adapted to the first protruding edge 42 and the second protruding edge 51. The inner sides of the first positioning card frame 211 and the second positioning card frame 212 are respectively provided with anti-loosening slots, and one end is a closed end 213 , and the other end has an opening 214 for the first protruding edge 42 and the second protruding edge 51 to enter. In this embodiment, the anti-loosening slot is an arc slot, and the openings 214 of the first positioning frame 211 and the second positioning frame 212 are located at opposite ends.

Further, referring to FIG. 3 to FIG. 7 , the pump casing 5 is also provided with a positioning plate 52 , the positioning plate 52 is provided with a locking groove 521 , and the drive unit housing 2 is also provided with a fixing seat 215 And the locking piece 216, one end of the locking piece 216 is connected with the fixing seat 215, and in this embodiment, it is fixed by threaded connection, and the other end of the locking piece 216 is matched with the locking groove 521 to prevent the first convex edge 42. The second protruding edge 51 escapes from the first positioning card frame 211 and the second positioning card frame 212 .

Further, referring to FIG. 7 , the interface adapter 4 is fastened and connected to the pump housing 5 to form the outer shell of the pump head assembly 20 , and both sides of the interface adapter 4 are symmetrically provided with buckles 43 . Both sides of the pump housing 5 are symmetrically provided with slots 53 that match the buckles 43 . In this embodiment, two terminals 410 for connecting the two ends of the pump tube 8 and two interface terminals 41 respectively connected to the two terminals 410 are provided under the interface adapter 4. The interface terminals 41 The outer wall of the casing is provided with a pump interface sealing ring 411 .

Further, referring to Fig. 3, 5, 7, the driving gear of the gear transmission group 3 is connected with the transmission shaft 11 of the motor 1, the center of the roller assembly 6 is provided with a roller driving shaft 7, and the roller One end of the wheel drive shaft 7 is inserted and matched with the driven gear of the gear transmission group 3 for transmission, and the other end is inserted and cooperated with the roller bracket 61 of the roller assembly 6 for transmission. In this embodiment, the gear transmission group 3 includes a driving gear, a driven gear, and several transmission gears arranged between the driving gear and the driven gear, and two ends of the roller drive shaft 7 are provided. The first driving head 71 and the second driving head 72 with notches are respectively provided with the first driving head 71 and the second driving head 72 that are compatible with the driven gear and the roller bracket 61. Seat 31 , second driving seat 612 , the outer part of the first driving seat 31 is sheathed with a driving part sealing member 32 closely matching with the driving part housing 2 .

Further, referring to FIG. 7, the roller assembly 6 includes a roller bracket 61, a roller 62 and a bracket cover 63, the roller bracket 61 is connected to the bracket cover 63, and the roller bracket 61 faces the bracket One side of the blocking cover 63 is provided with several roller shafts 611, and the roller 62 is installed on the described roller shaft 611, and the side of the bracket blocking cover 63 towards the roller bracket 61 is provided with several roller shafts connected to each other. Card column.

Further, referring to Figs. 4 and 5, the drive part housing 2 includes a drive part outer shell 21 and a drive part back cover 22, and the drive part outer shell 21 and the drive part back cover 22 are connected by several fasteners , A cavity for installing the gear transmission set 3 is formed between the two, and the outer casing 21 of the driving part is provided with a central hole 210 for inserting the roller drive shaft 7 . In this embodiment, the outer shell 21 of the driving part includes a motor fixing part 2101 and a pump head fixing part 2102 arranged sequentially from bottom to top, the motor 1 is mounted on the motor fixing part 2101 through several fasteners, and the pump The head assembly 20 is clamped and fixed on the pump head fixing part 2102 .

Embodiments of the present invention

Embodiment 1 of delivery system

Referring to Fig. 8 to Fig. 11, in this embodiment, the above-mentioned peristaltic pump is provided on the delivery system. Specifically, in this embodiment, the delivery system further includes a liquid delivery module, the liquid delivery module includes a liquid delivery module housing 30 and a liquid storage box 40, and the drive assembly 10 of the peristaltic pump is arranged on the liquid delivery module. On the injection module casing 30, in this embodiment, the liquid injection module casing 30 is a deformation structure of the drive part casing 21, and the two are integrally formed, and the liquid storage box 40 is installed in the liquid injection module casing 30, The side of the liquid delivery module shell 30 facing the liquid storage box 40 has a liquid storage box groove 31 for the liquid storage box 40 to be placed in, and the pump head assembly 20 of the peristaltic pump is arranged between the liquid storage box 40 and the liquid The liquid storage box 40 is provided with a joint assembly 50 connected with the interface adapter 4 of the peristaltic pump in the chamber formed between the shells 30 of the injection module.

Embodiment 2 of delivery system

Referring to Figures 12 to 14, in this embodiment, the delivery system has a peristaltic pump, the peristaltic pump includes a drive assembly 10, and a pump head assembly 20 detachably mounted on the drive assembly 10, the drive assembly 10 includes The motor 1, the driving part housing 2 and the gear transmission group 3, one side of the driving part housing 2 is installed with the motor 1 and the pump head assembly 20 sequentially from bottom to top, and the other side of the driving part housing 2 is installed There is a gear transmission group 3, and the drive part housing 2 includes a drive part outer shell 21 and a drive part back cover 22, and the drive part outer shell 21 and the drive part back cover 22 are connected by several fasteners. A chamber for the gear transmission group 3 for installation is formed between them, the pump head assembly 20 includes an interface adapter 4, a pump housing 5, a roller assembly 6 and a pump tube 8, and the pump housing 5 is installed on the interface transfer On the connector 4, the roller assembly 6 is installed in the cavity between the interface adapter 4 and the pump casing 5, and is connected with the gear transmission group 3, and the motor 1 controls the roller through the gear transmission group 3 The assembly 6 rotates, the pump tube 8 is arranged in the area between the pump housing 5 and the roller assembly 6 , and both ends are connected to the interface adapter 4 .

The dispensing system also includes a liquid dispensing module, the liquid dispensing module includes a liquid dispensing module housing 30 and a liquid storage box 40, the drive assembly 10 of the peristaltic pump is arranged on the liquid dispensing module housing 30, in this In the embodiment, the housing 30 of the liquid injection module is a deformed structure of the outer housing 21 of the driving part, and the two are integrally formed. The pump head assembly 20 of the peristaltic pump is arranged on the liquid storage box 40, and the liquid storage box 40 is installed on the Liquid injection module housing 30, the side of the liquid injection module housing 30 facing the liquid storage box 40 has a liquid storage box groove 31 for the liquid storage box 40 to be inserted into, and the liquid storage box 40 faces the liquid storage box groove One side of 31 is equipped with pump head assembly 20. In this embodiment, the pump housing 5 of the pump head assembly 20 is integrally formed with the liquid storage box 40 , and a sealing plate 401 is installed on the pump housing 5 , and an interface adapter is formed between the two. 4. The chamber of the roller assembly 6 .

Working process of the present invention:

When the peristaltic pump of the present invention is in use, the motor 1 controls the rotation of the roller assembly 6 through the gear transmission group 3 and the roller drive shaft 7, and the fluid delivery is realized by the rotation of the roller 62 to squeeze the elastic pump tube 8. When the pump tube needs to be replaced after long-term use, first remove the locking piece 216, and then turn the pump head assembly 20 so that the first convex edge 42 and the second convex edge 51 are separated from the first positioning card frame 211 and the second positioning card frame respectively. out of frame 212, the pump head assembly 20 can be removed. After removing the pump head assembly 20, first pull out the roller drive shaft 7, and then press the buckles 43 on both sides to disengage from the slot 53, so that the interface adapter 4 and the pump casing 5 can be separated, and a new one can be replaced. After the pump tube 8, first engage the interface adapter 4 and the pump casing 5, and then insert the roller drive shaft 7 into the roller assembly 6 to form the pump head assembly 20, and put the pump head assembly 20 into the second In the first positioning card frame 211 and the second positioning card frame 212, the positioning plate 52 is finally clamped by the locking member 216 to complete the assembly.

In Embodiment 1 of the delivery system of the present invention, the peristaltic pump can be maintained only by removing the liquid storage box 40 . The working principle and maintenance operation of the peristaltic pump on the delivery system are consistent with the above-mentioned method. In Embodiment 2 of the delivery system of the present invention, the peristaltic pump can be maintained only by removing the liquid storage box 40 and then removing the sealing plate 401 from the liquid storage box 40 . Since the peristaltic pump is arranged in the chamber formed between the liquid storage box 40 and the liquid injection module housing 30, even if the liquid such as detergent leaks due to failure to replace the pump tube 8 in time, the leaked liquid will remain in the liquid storage The interlayer between the box 40 and the liquid injection module casing 30 avoids the problem of liquid flowing out from the outside of the electrical appliance.

The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

A peristaltic pump, characterized in that: the peristaltic pump includes a drive assembly (10), and a pump head assembly (20) detachably mounted on the drive assembly (10), and the drive assembly (10) includes a motor ( 1), the driving part housing (2) and the gear transmission group (3), the motor (1) and the pump head assembly (20) are installed on one side of the driving part housing (2), the driving part housing The other side of (2) is equipped with a gear transmission group (3), and the pump head assembly (20) includes an interface adapter (4), a pump casing (5), a roller assembly (6) and a pump tube (8 ), the interface adapter (4) is installed on the pump casing (5), the roller assembly (6) is installed between the interface adapter (4) and the pump casing (5), and is connected with the gear transmission Group (3) transmission connection, the motor (1) controls the rotation of the roller assembly (6) through the gear transmission group (3), and the pump tube (8) is arranged between the pump casing (5) and the roller assembly (6) between, and the two ends are connected to the interface adapter (4).
The peristaltic pump according to claim 1, characterized in that: the drive assembly (10) is snap fitly connected with the pump head assembly (20), and the bottom of the interface adapter (4) has a first A convex edge (42), the top of the pump casing (5) has a second convex edge (51), and the outer wall of the drive part housing (2) is provided with the first convex edge (42), the second convex edge The first positioning card frame (211) and the second positioning card frame (212) are adapted along (51), and the inner sides of the first positioning card frame (211) and the second positioning card frame (212) are respectively provided with One end is a closed end (213), and the other end has an opening (214) for entering the first protruding edge (42) and the second protruding edge (51).
A peristaltic pump according to claim 2, characterized in that: the anti-loosening slot is an arc-shaped slot, and the openings (214) of the first positioning frame (211) and the second positioning frame (212) ) are at opposite ends.
The peristaltic pump according to claim 2, characterized in that: the pump casing (5) is further provided with a positioning plate (52), and the positioning plate (52) is provided with a locking groove (521), The drive part housing (2) is also provided with a fixing seat (215) and a locking piece (216), one end of the locking piece (216) is connected with the fixing seat (215), and the locking piece (216) The other end of the locking groove (521) cooperates to prevent the first protruding edge (42) and the second protruding edge (51) from coming out of the first positioning card frame (211) and the second positioning card frame (212).
The peristaltic pump according to claim 1, characterized in that: the interface adapter (4) is fastened and connected with the pump casing (5) to form the outer casing of the pump head assembly (20), and the interface adapter Buckles (43) are symmetrically provided on both sides of the connector (4), and slots (53) matching the buckles (43) are symmetrically provided on both sides of the pump casing (5).
The peristaltic pump according to claim 1, characterized in that: the driving gear of the gear transmission group (3) is connected to the transmission shaft (11) of the motor (1), and the roller assembly (6) There is a roller drive shaft (7) at the center, one end of the roller drive shaft (7) is mated with the driven gear of the gear transmission group (3) for transmission, and the other end is connected with the roller assembly (6) The roller support (61) is plugged and matched with the transmission.
A peristaltic pump according to claim 1, characterized in that: the drive part casing (2) includes a drive part outer casing (21) and a drive part back cover (22), and the drive part outer casing (21 ) and the back cover of the drive part (22) are connected by several fasteners, and a cavity for the gear transmission group (3) is formed between the two, and the outer casing of the drive part (21) is equipped with Center hole (210) for insertion of the roller drive shaft (7) of the roller assembly (6).
A dosing system, characterized in that the dosing system is provided with the peristaltic pump according to any one of claims 1-7.
The dispensing system according to claim 8, characterized in that: the dispensing system further includes a liquid dispensing module, the liquid dispensing module includes a liquid dispensing module housing (30) and a liquid storage box (40), The driving assembly (10) of the peristaltic pump is arranged on the liquid injection module casing (30), the liquid storage box (40) is installed in the liquid injection module casing (30), and the liquid injection module casing ( 30) The side facing the liquid storage box (40) has a liquid storage box groove (31) for the liquid storage box (40) to be placed in, and the pump head assembly (20) of the peristaltic pump is arranged on the liquid storage box ( 40) In the chamber formed between the housing (30) and the liquid injection module, the liquid storage box (40) is provided with a joint assembly (50) connected to the interface adapter (4) of the peristaltic pump.
A dispensing system, characterized in that: the dispensing system is provided with the peristaltic pump according to claim 1, the dispensing system also includes a liquid dispensing module, and the liquid dispensing module includes a liquid dispensing module housing (30 ) and a liquid storage box (40), the drive assembly (10) of the peristaltic pump is set on the liquid delivery module casing (30), and the pump head assembly (20) of the peristaltic pump is set on the liquid storage box (40) Above, the liquid storage box (40) is installed in the liquid injection module housing (30), and the side of the liquid injection module housing (30) facing the liquid storage box (40) has a liquid supply storage box (40) The liquid storage box tank (31) is placed, the pump head assembly (20) is installed on the side of the liquid storage box (40) facing the liquid storage box tank (31), and the pump housing of the pump head assembly (20) (5) Set on the liquid storage box (40), the pump casing (5) is also equipped with a sealing plate (401), and a joint adapter (4) and a roller assembly are formed between the two (6) chamber.