CN211975349U

CN211975349U - Peristaltic pump head structure

Info

Publication number: CN211975349U
Application number: CN202020042365.1U
Authority: CN
Inventors: 吴巍
Original assignee: Baoding Chuang Rui Precision Pump Co ltd
Current assignee: Baoding Chuang Rui Precision Pump Co ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-11-20
Anticipated expiration: 2030-01-09

Abstract

The utility model provides a wriggling pump head structure, including the briquetting, body and wheel components, wheel components coupling is on the body, the briquetting is pegged graft on the body, wheel components includes the gyro wheel frame, the gyro wheel frame includes two discs, two logical grooves and two first openings have radially been seted up on the disc, two central lines between two first openings of central line perpendicular to that lead to between the groove, it has two gyro wheels to peg graft between two discs, the gyro wheel includes the gyro wheel axle and cup joints the cylinder in the gyro wheel axle outside, peg graft at logical groove in the both ends of gyro wheel axle, gyro wheel axle tip rigid coupling has first convex shoulder, two disc center rigid couplings have the axis of rotation, the axis of rotation stretches out the disc rigid coupling and has the second convex shoulder, the joint has the spring between first convex shoulder and the second convex shoulder, the rigid coupling has four leading wheel. The utility model discloses a peristaltic pump head can reduce the wearing and tearing volume of hose, can make the hose be in the trapped orbit and not skew, prolongs the life of hose.

Description

Peristaltic pump head structure

Technical Field

The utility model relates to a peristaltic pump technical field, concretely relates to peristaltic pump head structure.

Background

The peristaltic pump consists of three parts: a drive, a pump head and a hose. The characteristics of fluid isolation in the pump pipe, quick replacement of the pump pipe, reversible fluid running, dry running, low maintenance cost, and the like constitute the main competitive advantage of the peristaltic pump. Peristaltic pumps move forward as a finger squeezes a fluid filled hose, sliding the fluid in the tube forward. Peristaltic pumps are also the principle only replacing the fingers with rollers. The fluid is pumped by alternately squeezing and releasing the elastic delivery hose of the pump. Just like squeezing the hose with two fingers, as the fingers move, negative pressure is formed in the hose, and the liquid flows along with the negative pressure. A peristaltic pump is a section of pump tubing between two rotating rollers that forms a "pillow" shaped fluid. The volume of the "pillow" depends on the inner diameter of the pump tube, the number of rotors and the geometric characteristics. The flow rate depends on the product of the rotating speed of the pump head and the volume of the pillow and the number of pillows generated by each rotation of the rotor. The size of the "pillow" is generally constant (except when fluids of particularly high viscosity are pumped). The existing pump head consists of a pressing block, a front support, a pipe clamp, a body, a roller assembly and other structural components, and has a plurality of parts and a complex structure; and the roller components size is fixed, can not carry out self-adaptation adjustment according to the hose, and is big to the hose wearing and tearing volume, and the hose does not have fixedly between briquetting and body, uses for a long time and easily deviates from fixed position, consequently needs the problem that a peristaltic pump head structure of design exists in order to solve prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a peristaltic pump head structure to solve the problem that above-mentioned prior art exists, the utility model discloses a peristaltic pump head can reduce the wearing and tearing volume of hose, can make the hose be in the trapped orbit and not skew, prolongs the life of hose.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a peristaltic pump head structure, which comprises a pressing block, a body and a roller component, wherein the roller component is coupled on the body, the pressing block is inserted on the body, the roller component comprises a roller carrier, the roller carrier comprises two discs, two through grooves and two first openings are radially arranged on the discs, the central line between the two through grooves is vertical to the central line between the two first openings, two rollers are inserted between the two discs, each roller comprises a roller shaft and a roller sleeved outside the roller shaft, two ends of the roller shaft are inserted in the through grooves, the length of the through grooves is larger than the outer diameter of the roller shaft, the width of the through grooves is equal to the outer diameter of the roller shaft, the end part of the roller shaft is fixedly connected with a first convex shoulder, and two centers of the discs are fixedly connected with a rotating shaft, the rotating shaft extends out of the disc and is fixedly connected with a second convex shoulder, a spring is clamped between the first convex shoulder and the second convex shoulder, and four guide wheel assemblies are fixedly connected to the rotating shaft.

Preferably, the guide wheel assembly comprises a guide wheel shaft and a guide wheel sleeved outside the guide wheel shaft, the end part of the guide wheel shaft is fixedly connected to the rotating shaft, and the guide wheel is arranged in the first opening.

Preferably, the pressing block comprises a semicircular concave plate, two supporting plates are fixedly connected to the end portion of the semicircular concave plate, a convex block is fixedly connected to the end portion of each supporting plate, and an arc-shaped groove is formed in each convex block.

Preferably, the body includes first curb plate, second curb plate and bottom plate, first curb plate with the coupling between the second curb plate the axis of rotation, first curb plate, second curb plate with the bottom plate rigid coupling, seted up tapered C-shaped groove on the bottom plate, the lug with the connection can be dismantled in the C-shaped groove.

Preferably, a hose connector is inserted into the arc-shaped groove.

Preferably, the central shaft on the outer side of the bottom plate is connected with a buckle, and the buckle is detachably connected with the convex block.

Preferably, the buckle is a cuboid plate, two second openings are symmetrically formed in centers of two sides of the cuboid plate, and the buckle is made of elastic materials.

Preferably, the briquetting is the software material, the quantity of spring is 4.

The utility model discloses a following technological effect:

1. the utility model discloses a peristaltic pump head structure is through setting up the spring between first convex shoulder and second convex shoulder for the gyro wheel is at the elasticity extrusion hose that rotates the in-process of round through the spring, makes the gyro wheel can be along with the automatic radial adjustment wheel components size of hose when extruding the hose, reduces the wearing and tearing of hose, has prolonged the life of hose, has reduced the change number of times of hose.

2. The guide wheels are arranged to enable the hose to be located in a space position between the two guide wheels, so that the hose does not deviate from a track in the operation process, and the working efficiency is improved.

3. The guide wheel can rotate around the guide wheel shaft in the process of rotating along with the roller assembly, so that the abrasion to the hose is further reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of the pressing block, the body and the roller assembly of the present invention before assembly;

FIG. 2 is a schematic structural view of the assembled pressing block, body and roller assembly of the present invention;

fig. 3 is an isometric view of the truck assembly.

Wherein, 1 is a pressing block, 2 is a body, 1.1 is a semicircular concave plate, 1.2 is a supporting plate, 1.3 is a convex block, 1.4 is an arc-shaped groove, 2.1 is a first side plate, 2.2 is a second side plate, 2.3 is a bottom plate, 2.3.1 is a C-shaped groove, 6 is a roller frame, 6.1 is a disc, 6.1.1 is a through groove, 6.1.2 is a first opening, 7 is a spring, 8 is a roller, 8.1 is a roller shaft, 8.2 is a roller, 8.1.1 is a first convex shoulder, 9 is a guide wheel shaft, 10 is a rotating shaft, 10.1 is a second convex shoulder, 11 is a guide wheel, 12 is a hose connector, 13 is a buckle, and 13.1 is a second opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-3, the utility model provides a peristaltic pump head structure, including a pressing block 1, a body 2 and a roller assembly, the roller assembly is coupled to the body 2, the pressing block 1 is inserted to the body 2, the roller assembly includes a roller frame 6, the roller frame 6 includes two disks 6.1, two through slots 6.1.1 and two first openings 6.1.2 are radially arranged on the disk 6.1, a central line between the two through slots 6.1.1 is perpendicular to a central line between the two first openings 6.1.2, two rollers 8 are inserted between the two disks 6.1, the rollers 8 include a roller shaft 8.1 and a roller 8.2 sleeved outside the roller shaft 8.1, two ends of the roller shaft 8.1 are inserted to the through slots 6.1.1, the length of the through slots 6.1.1 is greater than the outer diameter of the roller shaft 8.1, the width of the through slots 6.1.1 is equal to the outer diameter of the roller shaft 8.1, a first disk 8.1 is fixedly connected to the end of the roller shaft, a convex shoulder 8.1 is fixedly connected to the center of the two disks 6., the rotating shaft 10 extends out of the disc 6.1 and is fixedly connected with a second shoulder 10.1, a spring 7 is clamped between the first shoulder 8.1.1 and the second shoulder 10.1, and four guide wheel assemblies are fixedly connected on the rotating shaft 10.

In a further preferable scheme, the guide wheel assembly comprises a guide wheel shaft 9 and a guide wheel 11 sleeved outside the guide wheel shaft 9, the end part of the guide wheel shaft 9 is fixedly connected to the rotating shaft 10, and the guide wheel 11 is arranged in the first opening 6.1.2.

Further preferred scheme, briquetting 1 includes semicircular concave plate 1.1, and semicircular concave plate 1.1 tip rigid coupling has two backup pads 1.2, and backup pad 1.2 tip rigid coupling has lug 1.3, has seted up arc wall 1.4 in the lug 1.3, and lug 1.3 and backup pad 1.2 are integrated injection moulding, and briquetting 1 has elasticity and can expand and also can install like the bending of figure 1.

Further preferred scheme, body 2 includes first curb plate 2.1, second curb plate 2.2 and bottom plate 2.3, the coupling axis of rotation 10 between first curb plate 2.1 and the second curb plate 2.2, first curb plate 2.1, second curb plate 2.2 and bottom plate 2.3 rigid coupling, set up tapered C-shaped groove 2.3.1 on the bottom plate 2.3, lug 1.3 can dismantle with C-shaped groove 2.3.1 and be connected, first curb plate 2.1, second curb plate 2.2 and bottom plate 2.3 are integration injection moulding.

In a further preferred scheme, a hose connector 12 is inserted into the arc-shaped groove 1.4, the projection 1.3 plays a role in positioning the body 2, the hose connector 12 is placed in the arc-shaped groove 1.4, and the inlet and the outlet of the hose connector 12 are respectively connected with one hose connector 12.

Further preferred scheme, bottom plate 2.3 outside central axis has connect buckle 13, and buckle 13 and lug 1.3 detachable connection.

Further preferred scheme, buckle 13 is the cuboid board, and cuboid board both sides centrosymmetric has seted up two second openings 13.1, and buckle 13 is the elasticity material, and buckle 13 material preferred is elastic engineering plastics.

Further preferably, the pressing block 1 is made of soft materials, the pressing block 1 is preferably made of elastic engineering plastics, the number of the springs 7 is 4, the springs 7 are of C-shaped structures, and the tension force is outward.

The utility model discloses a working principle of wriggling pump head structure: when the flexible pipe assembling device works, a flexible pipe is placed between the two guide wheels 11, the flexible pipe is connected to the inner end of the flexible pipe joint 12, the flexible pipe joint 12 is inserted into the arc-shaped groove 1.4 on the pressing block 1, the convex block 1.3 on the pressing block 1 is matched and fastened with the buckle 13, the pressing block 1 is preferably made of elastic engineering plastics, the buckle 13 is a cuboid plate, two second openings 13.1 are symmetrically formed in the centers of the two sides of the cuboid plate, the buckle 13 is made of elastic materials, preferably made of elastic engineering plastics and is connected to the bottom plate in a shaft mode, so that the buckling or disassembling can be conveniently realized through rotation, when the pipe wheel assembly rotates, as the first convex shoulder 8.1.1 at the end part of the roller shaft 8.1 is connected with the second convex shoulder 10.1 at the end part of the rotating shaft 10 through the spring 7, the spring 7 is of a C-shaped structure, the tension is outward, the roller shaft 8.1 is inserted into the through groove 6.1.1 on the disc 6.1, and, the width of the through groove 6.1.1 is equal to the outer diameter of the roller shaft 8.1, therefore, when the roller 8 rotates for a circle, when the hose is extruded, the roller moves a small section of displacement radially inwards in the through groove 6.1.1 due to the reaction force of the hose, meanwhile, the roller 8 can keep enough extrusion force on the hose due to the outward acting force of the spring 7, thereby ensuring that the required vacuum is extruded in the hose under the condition of not causing large abrasion on the hose, so that the liquid is stably sucked and sent out, and in the rotating process of the roller 8, as the hose is constantly positioned in the space formed by the guide wheel 11, the hose can be well positioned in the working process, the hose is prevented from deviating from a track in the running process, the service life of the hose is prolonged, the times of replacing the hose are reduced, the working efficiency is improved, and as the guide wheel 11 is fixedly connected with the rotating shaft 10, the guide wheel 11 is sleeved on the guide wheel 11 shaft, so that the guide wheel 11 can rotate around the guide wheel 11 shaft in the rotating process along with the roller 8 assembly, and the abrasion to the hose is further reduced.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A peristaltic pump head structure comprises a pressing block (1), a body (2) and a roller assembly, wherein the roller assembly is connected to the body (2) in an axial mode, the pressing block (1) is connected to the body (2) in an inserted mode, the peristaltic pump head structure is characterized in that the roller assembly comprises a roller frame (6), the roller frame (6) comprises two disks (6.1), two through grooves (6.1.1) and two first openings (6.1.2) are radially formed in the disks (6.1), a central line between the two through grooves (6.1.1) is perpendicular to a central line between the two first openings (6.1.2), two rollers (8) are connected between the two disks (6.1) in an inserted mode, each roller (8) comprises a roller shaft (8.1) and a roller (8.2) sleeved on the outer side of the roller shaft (8.1), two ends of each roller shaft (8.1) are connected to the through the corresponding through grooves (6.1.1) in an inserted mode, and the length of each through groove (6.1.1) is larger than the outer diameter of the roller shaft (8.1), the width that leads to groove (6.1.1) equals the external diameter of gyro wheel axle (8.1), gyro wheel axle (8.1) tip rigid coupling has first convex shoulder (8.1.1), two disc (6.1) center rigid coupling has axis of rotation (10), axis of rotation (10) stretch out disc (6.1) rigid coupling has second convex shoulder (10.1), first convex shoulder (8.1.1) with joint has spring (7) between second convex shoulder (10.1), the rigid coupling has four leading wheel subassemblies on axis of rotation (10).

2. A peristaltic pump head structure as claimed in claim 1, wherein: the guide wheel assembly comprises a guide wheel shaft (9) and a guide wheel (11) sleeved on the outer side of the guide wheel shaft (9), the end part of the guide wheel shaft (9) is fixedly connected to the rotating shaft (10), and the guide wheel (11) is arranged in the first opening (6.1.2).

3. A peristaltic pump head structure as claimed in claim 1, wherein: briquetting (1) includes semi-circular concave plate (1.1), semi-circular concave plate (1.1) tip rigid coupling has two backup pads (1.2), backup pad (1.2) tip rigid coupling has lug (1.3), arc wall (1.4) have been seted up in lug (1.3).

4. A peristaltic pump head structure as claimed in claim 3, wherein: the body (2) comprises a first side plate (2.1), a second side plate (2.2) and a bottom plate (2.3), the first side plate (2.1) is connected with the second side plate (2.2) in a shaft mode through a rotating shaft (10), the first side plate (2.1), the second side plate (2.2) and the bottom plate (2.3) are fixedly connected, a C-shaped groove (2.3.1) with taper is formed in the bottom plate (2.3), and the convex block (1.3) is detachably connected with the C-shaped groove (2.3.1).

5. A peristaltic pump head structure as claimed in claim 3, wherein: a hose joint (12) is inserted in the arc-shaped groove (1.4).

6. A peristaltic pump head structure as claimed in claim 4, wherein: the central shaft of the outer side of the bottom plate (2.3) is connected with a buckle (13), and the buckle (13) is detachably connected with the convex block (1.3).

7. A peristaltic pump head structure as claimed in claim 6, wherein: the buckle (13) is a cuboid plate, two second openings (13.1) are symmetrically formed in the centers of two sides of the cuboid plate, and the buckle (13) is made of elastic materials.

8. A peristaltic pump head structure as claimed in claim 1, wherein: the pressing block (1) is made of soft materials, and the number of the springs (7) is 4.