CN218624586U

CN218624586U - Miniature peristaltic pump structure

Info

Publication number: CN218624586U
Application number: CN202222316191.5U
Authority: CN
Inventors: 丁松年; 杨俊杰; 张效振; 金玲珑
Original assignee: Hangzhou Lefoo Industrial Co ltd
Current assignee: Hangzhou Lefoo Industrial Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-03-14
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to the technical field of peristaltic pumps, and discloses a micro peristaltic pump structure, which comprises a base and a pump cover, wherein a plurality of lugs distributed along the circumferential direction are arranged on the inner wall of one end of the base, clamping grooves distributed along the circumferential direction are formed between the lugs and the bottom surface of the base, and one end of each clamping groove is provided with a blocking part; one end towards the base on the pump cover is equipped with a plurality of lugs that distribute along the axial, the lateral surface of lug be equipped with the rotatory joint complex card ear of draw-in groove, form between the adjacent lug to be used for dodging the groove of card ear. The utility model discloses have between pump cover and the base assembly, dismantle all very convenient beneficial effect.

Description

Miniature peristaltic pump structure

Technical Field

The utility model relates to a peristaltic pump technical field especially relates to a miniature peristaltic pump structure.

Background

The peristaltic pump utilizes the roller assembly to periodically extrude the flexible pipe with elasticity, and the process of continuously extruding the flexible pipe, obtaining negative pressure and alternately pumping out is completed to finish the conveying of the medium. The peristaltic pump has the advantages of no pollution, high precision, good sealing performance, simple maintenance and the like, and is widely applied to the fields of medical equipment, detecting instruments, food filling and the like.

The peristaltic pump generally comprises three parts, namely a driver, a pump head and a hose, wherein the hose is arranged in the pump head, and the driver drives a wheel carrier in the pump head to rotate so as to extrude the hose and further realize medium conveying. Because the hose and the wheel carrier are both arranged in the pump head, the pump head is usually formed by connecting a base and a pump cover, but the connection between the base and the pump cover in the prior peristaltic pump is complex, so that the assembly and the disassembly between the pump cover and the base are inconvenient; for example, a micro peristaltic pump disclosed in chinese patent publication No. CN208831212U has a complex assembly process, and complicated steps of assembling and disassembling the pump head and replacing the hose.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the above-mentioned problem that the peristaltic pump among the prior art exists, provide an assembly between pump cover and the base, dismantle all very convenient miniature peristaltic pump structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a micro peristaltic pump structure comprises a base and a pump cover, wherein a plurality of convex blocks distributed along the circumferential direction are arranged on the inner wall of one end of the base, clamping grooves distributed along the circumferential direction are formed between the convex blocks and the bottom surface of the base, and a blocking part is arranged at one end of each clamping groove; one end towards the base on the pump cap is equipped with a plurality of lugs that distribute along the axial, the lateral surface of lug be equipped with the rotatory joint complex card ear of draw-in groove, form between the adjacent lug to be used for dodging the groove of card ear. When the pump cover is used, the convex lug on the pump cover firstly extends into the avoidance groove, then the pump cover is rotated by an angle, so that the clamping lug rotates to enter the clamping groove and is limited by the blocking part, and the clamping lug and the clamping groove form clamping fit at the moment, so that the installation is very convenient; when the pump cover (the hose or the wheel carrier is replaced) needs to be disassembled, the pump cover can be easily disassembled only by reversely rotating the pump cover by an angle to enable the clamping lug to enter the avoiding groove; the peristaltic pump with the structure has the advantages that the pump cover and the base are very convenient to install and disassemble.

Preferably, the bump is provided with a limiting groove penetrating through two side faces of the bump, and the outer wall of the lug is provided with a limiting boss matched with the limiting groove. After the clamping lug rotates and is clamped into the clamping groove, the limiting boss on the lug is clamped into the corresponding limiting groove to be further limited, so that the connection between the pump cover and the base is more stable and reliable, the pump cover is prevented from being opened easily, and the pump cover can be opened only when certain rotating force is applied to the pump cover to separate the limiting boss from the limiting groove.

Preferably, a chamfer angle is arranged between one end of the lug, far away from the blocking part, and the inner wall of the base, and one end of the clamping lug is provided with an oblique chamfer angle. The fillet and the oblique chamfer both play a role in guiding, and the clamping lug can be smoothly and stably clamped into the clamping groove.

Preferably, the bottom surface of the base is provided with an arc-shaped convex strip at a position corresponding to the avoidance groove, the pump cover is provided with a plurality of arc-shaped supporting blocks, and when the clamping lugs are clamped into the clamping grooves, the arc surfaces of the arc-shaped supporting blocks are abutted to the arc surfaces of the arc-shaped convex strips for supporting. Arc support bar and arc sand grip butt chucking for be connected more stably, difficult emergence between pump cover and the base and rock.

Preferably, the hose pump further comprises a wheel carrier assembly rotatably connected with the base and a hose wound on the wheel carrier assembly, the other end of the base is provided with a power assembly for driving the wheel carrier assembly to rotate, and the side face of the pump cover is provided with a hose groove for the hose to enter and exit.

Preferably, a hose positioning seat is arranged at a position, corresponding to the hose groove, on the pump cover, connecting lugs are arranged at two ends of the hose positioning seat, connecting grooves are formed in two sides, located in the hose groove, of the pump cover, and the connecting lugs at two ends of the hose positioning seat are clamped into the connecting grooves to form clamping connection.

Preferably, the number of the hose grooves is two, and one side of the hose positioning seat is provided with a positioning bump corresponding to the hose groove.

Preferably, the wheel carrier assembly comprises a wheel carrier body and a plurality of roller shafts uniformly arranged on the wheel carrier body along the circumferential direction, and the roller shafts are rotatably provided with rollers for squeezing the hose. The rolling friction between the roller and the hose is not easy to damage the hose.

Therefore, the utility model discloses have between pump cover and the base assemble, dismantle all very convenient beneficial effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of fig. 1.

FIG. 3 is a schematic view of the connection between the pump cover and the base.

Fig. 4 is a schematic structural diagram of the base.

Fig. 5 is a schematic structural diagram of the pump cover and hose positioning seat.

Fig. 6 is a structural schematic diagram of another view angle of the pump cover.

Fig. 7 is a schematic structural diagram of the wheel frame assembly.

In the figure: the device comprises a base 1, a bump 100, a clamping groove 101, a blocking part 102, an avoiding groove 103, a limiting groove 104, a fillet 105, an arc-shaped convex strip 106, a pump cover 2, a lug 20, a limiting boss 21, an arc-shaped supporting block 22, a hose groove 23, a connecting groove 24, a clamping lug 200, an oblique chamfer 201, a wheel carrier component 3, a wheel carrier body 30, a roller shaft 31, a roller 32, a hose 4, a power component 5, a hose positioning seat 6, a connecting lug 60 and a positioning bump 61.

Detailed Description

The invention will be further described with reference to the following drawings and detailed description:

as shown in fig. 1-7, the micro peristaltic pump structure includes a base 1 and a pump cover 2, wherein a plurality of protrusions 100 distributed along the circumferential direction are disposed on an inner wall of one end of the base 1, clamping grooves 101 distributed along the circumferential direction are formed between the protrusions 100 and a bottom surface of the base, and a blocking portion 102 is disposed at one end of each clamping groove; a plurality of lugs 20 distributed along the axial direction are arranged at one end of the pump cover 2 facing the base 1, clamping lugs 200 matched with the clamping grooves in a rotating and clamping mode are arranged on the outer side surfaces of the lugs 20, and an avoiding groove 103 for avoiding the clamping lugs is formed between the adjacent lugs 100; the bump 100 is provided with a limit groove 104 penetrating through two side surfaces of the bump, and the outer wall of the lug 20 is provided with a limit boss 21 matched with the limit groove.

A chamfer 105 is arranged between one end of the lug 100 far away from the blocking part 102 and the inner wall of the base 1, and an inclined chamfer 201 is arranged at one end of the clamping lug 200. Arc sand grip 106 is equipped with the department that corresponds of dodging the groove on the bottom surface of base 1, a plurality of arc supporting shoes 22 on the pump cover 2, when the draw-in groove is gone into to the card ear card, the cambered surface of arc supporting shoe supports with the cambered surface butt of arc sand grip.

As shown in fig. 2 and 5, the device further comprises a wheel carrier assembly 3 rotationally connected with the base 1, and a hose 4 wound on the wheel carrier assembly, wherein a power assembly 5 for driving the wheel carrier assembly to rotate is arranged at the other end of the base 1, and a hose groove 23 for allowing the hose to enter and exit is arranged on the side surface of the pump cover 2; a hose positioning seat 6 is arranged at the position, corresponding to the hose groove, of the pump cover 2, connecting lugs 60 are arranged at the two ends of the hose positioning seat 6, connecting grooves 24 are formed in the two sides, located in the hose groove, of the pump cover 2, and the connecting lugs at the two ends of the hose positioning seat are clamped into the connecting grooves to form clamping connection; the power component in this embodiment is a motor, the motor is connected with the base through bolts, the number of the hose grooves 23 is two, and one side of the hose positioning seat 6 is provided with a positioning bump 61 corresponding to the hose groove.

As shown in fig. 7, the wheel frame assembly 3 includes a wheel frame body 30, and a plurality of roller shafts 31 uniformly arranged on the wheel frame body along the circumferential direction, and rollers 32 for squeezing the hose are rotatably arranged on the roller shafts.

With the attached drawings, the principle of the utility model is as follows: during the assembly, lug 20 on the pump cover 2 stretches into earlier and dodges in the groove 104 on the base 1, then rotate an angle with pump cover 1, it is spacing to make in the rotatory draw-in groove 101 that gets into of lug 200 and through blocking part 102, the lug forms the joint cooperation with the draw-in groove this moment, spacing boss 21 card on the lug 20 is gone into in the spacing recess 104 on the lug 100 simultaneously, and the cambered surface of arc supporting shoe 22 supports with the cambered surface butt of arc sand grip 106, the pump cover is fixed a position completely this moment, the pump cover is very convenient with the assembly of base, and the location is very stable, can not rock, and difficult quilt is rotated easily and is opened.

When the pump cover 2 needs to be disassembled (the hose or the wheel carrier assembly needs to be replaced), the pump cover 2 only needs to be applied with a reverse rotating force, the pump cover is rotated in a reverse direction for an angle, so that the clamping lug enters the avoiding groove, and then the pump cover can be disassembled; the peristaltic pump with the structure has the advantages that the pump cover and the base are very convenient to install and disassemble.

The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A micro peristaltic pump structure comprises a base and a pump cover and is characterized in that a plurality of protruding blocks distributed along the circumferential direction are arranged on the inner wall of one end of the base, clamping grooves distributed along the circumferential direction are formed between the protruding blocks and the bottom surface of the base, and a blocking portion is arranged at one end of each clamping groove; one end towards the base on the pump cover is equipped with a plurality of lugs that distribute along the axial, the lateral surface of lug be equipped with the rotatory joint complex card ear of draw-in groove, form between the adjacent lug to be used for dodging the groove of card ear.

2. The structure of a micro peristaltic pump as claimed in claim 1, wherein the protrusion has a position-limiting groove extending through both sides of the protrusion, and a position-limiting protrusion adapted to the position-limiting groove is formed on an outer wall of the protrusion.

3. The structure of a micro peristaltic pump as claimed in claim 1, wherein a rounded corner is formed between an end of the protrusion away from the stopper and an inner wall of the base, and an oblique chamfer is formed at an end of the engaging lug.

4. The micro peristaltic pump structure according to claim 1, 2 or 3, wherein the base has an arc protrusion on a bottom surface thereof corresponding to the evasion groove, and the pump cover has a plurality of arc support blocks, wherein when the clip is inserted into the clip groove, the arc support blocks are supported by the arc protrusion.

5. The micro peristaltic pump structure as claimed in claim 1, further comprising a wheel frame assembly rotatably connected to the base, and a hose wound around the wheel frame assembly, wherein the other end of the base is provided with a power assembly for driving the wheel frame assembly to rotate, and a hose slot for allowing the hose to enter and exit is formed in a side surface of the pump cover.

6. The micro peristaltic pump structure of claim 5, wherein the pump cover is provided with a hose positioning seat corresponding to the hose groove, the hose positioning seat is provided with engaging lugs at two ends thereof, the pump cover is provided with connecting grooves at two sides of the hose groove, and the engaging lugs at two ends of the hose positioning seat are engaged with the connecting grooves to form a snap-fit connection.

7. The micro peristaltic pump structure as claimed in claim 6, wherein there are two hose slots, and one side of the hose positioning seat is provided with a positioning protrusion corresponding to the hose slot.

8. The structure of a micro peristaltic pump as claimed in claim 5, wherein the wheel frame assembly includes a wheel frame body, and a plurality of roller shafts uniformly arranged on the wheel frame body along a circumferential direction, the roller shafts being rotatably provided with rollers for squeezing the hose.