CN215719398U

CN215719398U - Stable peristaltic pump

Info

Publication number: CN215719398U
Application number: CN202122200055.5U
Authority: CN
Inventors: 陈兵
Original assignee: Botou Shengtang Pump Industry Co ltd
Current assignee: Botou Shengtang Pump Industry Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-01
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a stable peristaltic pump, which comprises a base, a pump head and a driving motor, wherein the pump head and the driving motor are arranged on the base, an outlet and an inlet are formed in the pump head, the outlet and the inlet are respectively connected with a material conveying pipeline through stainless steel corrugated pipes, a hose and two rotary tables are arranged in the pump head, two ends of the hose are respectively connected with the outlet and the inlet, a plurality of extrusion rollers matched with the hose are arranged between the two rotary tables, the rotary tables are driven by the driving motor, and hose guide rods are correspondingly arranged on the rotary tables between the adjacent extrusion rollers; a joint adjusting mechanism is arranged between the extrusion roller and the rotary table in a matching way; the synchronous adjustment of the corresponding adjusting bolts on the two turnplates is realized by applying the joint adjusting mechanism, so that the two ends of the squeeze roll can move synchronously, the horizontal state of the roll shaft is always kept, the uneven stress caused by different displacements at the two ends of the squeeze roll is avoided, and compared with the existing product, the synchronous adjustment of the two turnplates is convenient and the operation is stable after installation.

Description

Stable peristaltic pump

Technical Field

The utility model relates to the field of material conveying pumps, in particular to a stable peristaltic pump.

Background

As shown in fig. 6, the peristaltic pump is a common material conveying pump, which continuously extrudes a hose 11 through an extrusion roller 13 to realize feeding and conveying of materials, in order to adjust the pressure between the extrusion roller 13 and the hose 11, the position of the extrusion roller 13 in the existing peristaltic pump is adjustable, the common means is to realize jacking of the extrusion roller 13 by screwing a bolt 35 on a rotating disc 12, the extrusion roller 13 exerts greater pressure on the hose 11 as the extrusion roller is farther away from the axis of the rotating disc 12, but in the practical application process, it is found that since the rotating discs 12 are a pair, the extrusion roller 13 is installed between the two rotating discs 12, after an end cover 34 of a pump head 2 is detached, only the bolt 35 on the outer side can be conveniently screwed, and the condition that the bolt 35 is not arranged on the rotating disc 12 near the depth of the pump head 2 is satisfied, so that only one end of a roller shaft 22 can forcibly drive the whole extrusion roller 13 to slide, this causes the stress at squeeze roll 13 both ends uneven easily, causes squeeze roll 13 and the interlock of carousel 12 to collide with the damage easily after the long-time work of installation back, is unfavorable for the steady operation of peristaltic pump.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the background art, the present invention is directed to a stable peristaltic pump that effectively solves the problems in the background art.

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

a stable peristaltic pump comprises a base, a pump head and a driving motor, wherein the pump head and the driving motor are arranged on the base, an outlet and an inlet are formed in the pump head and are respectively connected with a material conveying pipeline through stainless steel corrugated pipes, a hose and two rotary tables are arranged in the pump head, two ends of the hose are respectively connected with the outlet and the inlet, a plurality of squeezing rollers matched with the hose are arranged between the two rotary tables, the rotary tables are driven by the driving motor, and hose guiding rods are correspondingly arranged on the rotary tables between the adjacent squeezing rollers; a joint adjusting mechanism is arranged between the squeezing roller and the rotary tables in a matched mode, the joint adjusting mechanism comprises bolt seats symmetrically arranged on the two rotary tables, adjusting bolts are screwed on the bolt seats, baffles are fixedly arranged on the adjusting bolts, the adjusting bolts are divided into threaded parts and transmission parts by the baffles, teeth are uniformly distributed on the transmission parts in the circumferential direction, and a transmission chain is arranged between the transmission parts of the two adjusting bolts in a matched mode; the rotatable cover of squeeze roll is established on the roller, the both ends of roller are provided with the position sleeve respectively, the rotatable connection of tip in screw thread portion is in on the position sleeve, be provided with on the carousel respectively with roller and driving chain matched with hole of stepping down.

Furthermore, a transparent observation window is arranged on the pump head.

Furthermore, a lifting lug is arranged on the driving motor.

Furthermore, a rotating sleeve is coaxially arranged on the hose guide rod.

Further, the position sleeve includes the first cover body and the second cover body, the correspondence is provided with fastening screw hole, the perforation of roller and spacing groove on the first cover body and the second cover body, the downthehole spiro union of fastening screw has fastening screw, two spacing grooves surround and form T shape hole after the first cover body aligns with the second cover body, adjusting bolt's screw thread portion tip have with T shape hole complex T shape head.

Furthermore, the first sleeve body is also provided with a limiting jackscrew matched with the T-shaped head.

The utility model has the following beneficial technical effects:

the synchronous adjustment of the corresponding adjusting bolts on the two turnplates is realized by applying the joint adjusting mechanism, so that the two ends of the squeeze roll can move synchronously, the horizontal state of the roll shaft is always kept, the uneven stress caused by different displacements at the two ends of the squeeze roll is avoided, and compared with the existing product, the synchronous adjustment mechanism not only is convenient to adjust, but also is stable in operation after being installed, and has strong practicability.

Drawings

FIG. 1 is a front view of an embodiment of the present invention with the stainless steel bellows removed;

FIG. 2 is a schematic diagram of the internal structure of the pump head at a left perspective according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic structural diagram of a main view downward joint adjustment mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic view of an assembly structure of an adjusting bolt and a positioning sleeve according to an embodiment of the present invention;

fig. 6 is a schematic diagram of the internal structure of a pump head in the prior art.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, the stable peristaltic pump described in this embodiment includes a base 1, a pump head 2 and a driving motor 3 disposed on the base 1, the base 1 includes an upper plate 4 and a lower plate 5, the pump head 2 and the driving motor 3 are mounted on the upper plate 4, an air bag 6 is disposed between the upper plate 4 and the lower plate 5, so that the base 1 has a damping function, four through holes distributed in a rectangular shape are uniformly distributed around the center of gravity of the upper plate 4 after the driving motor 3 and the pump head 2 are mounted, guide rods 7 corresponding to the through holes one by one are welded on the lower plate 5, rubber sleeves 8 are wrapped on the guide rods 7, the driving motor 3 is a speed reduction motor, an outlet 9 and an inlet 10 are disposed on the pump head 2, when the peristaltic pump works, the outlet 9 and the inlet 10 are respectively connected to a material conveying pipeline through stainless steel corrugated pipes (not shown), which are flexible, so that the transmission of vibration from the peristaltic pump to the material conveying pipeline can be further weakened, the pump head 2 is internally provided with a hose 11 and two turntables 12, two ends of the hose 11 are respectively connected with an outlet 9 and an inlet 10, three squeezing rollers 13 matched with the hose 11 are arranged between the two turntables 12, the turntables 12 are driven by a driving motor 3, hose guide rods 14 are correspondingly arranged on the turntables 12 between the adjacent squeezing rollers 13, the hose 11 is prevented from being misplaced, the hose 11 is always opposite to the squeezing rollers 13, a rotating sleeve 15 is coaxially arranged on each hose guide rod 14, the friction between each hose guide rod 14 and the hose 11 is reduced, and the hose 11 is protected; a joint adjusting mechanism is arranged between the squeezing roller 13 and the rotary tables 12 in a matching manner, the joint adjusting mechanism comprises bolt seats 16 symmetrically arranged on the two rotary tables 12, adjusting bolts 17 are screwed on the bolt seats 16, baffle plates 18 are welded on the adjusting bolts 17, the adjusting bolts 17 are divided into thread parts 19 and transmission parts 20 by the baffle plates 18, teeth are uniformly distributed on the transmission parts 20 in the circumferential direction, and a transmission chain 21 is arranged between the transmission parts 20 of the two adjusting bolts 17 in a matching manner; the rotatable cover of squeeze roll 13 is established on roller 22, and the both ends of roller 22 are provided with position sleeve 23 respectively, and the rotatable connection of tip at screw thread portion 19 is on position sleeve 23, is provided with respectively on the carousel 12 with

roller

22 and 21 matched with holes of stepping down 24 of driving chain, holes of stepping down 24 are the bar hole.

The pump head 2 is also provided with a transparent observation window 25, which is convenient for workers to observe the conditions in the pump head 2; the driving motor 3 is provided with a lifting lug, so that the peristaltic pump can be conveniently lifted.

The positioning sleeve 23 comprises a first sleeve body 26 and a second sleeve body 27, the first sleeve body 26 and the second sleeve body 27 are both circular, fastening screw holes 28, roller shaft through holes 29 and limiting grooves 30 are correspondingly arranged on the first sleeve body 26 and the second sleeve body 27, the number of the fastening screw holes 28 is multiple, fastening screws 31 are screwed in the fastening screw holes 28, the first sleeve body 26 and the second sleeve body 27 are fixedly connected through the fastening screws 31, so that the complete positioning sleeve 23 is formed, the two limiting grooves 30 are encircled to form a T-shaped hole after the first sleeve body 26 and the second sleeve body 27 are aligned, and the end part of a threaded part of the adjusting bolt 17 is provided with a T-shaped head 32 matched with the T-shaped hole; the first sleeve 26 is further provided with a limiting jackscrew 33 matched with the T-shaped head 32, and the limiting jackscrew 33 can be screwed to tightly jack the T-shaped head 32 after the position of the squeeze roll 13 is adjusted, so that the adjusting bolt 17 is not easy to rotate and automatically move back, and the position of the squeeze roll 13 is maintained in an auxiliary mode.

The working principle of the embodiment is as follows:

when the position of the extrusion roller 13 needs to be adjusted, the end cover 34 of the pump head 2 is opened, the limit jackscrew 33 is screwed out, the head of the adjusting bolt 17 is screwed by a wrench and other tools, the adjusting bolt 17 rotates while driving another adjusting bolt 17 corresponding to the adjusting bolt to synchronously rotate through the transmission chain 21, the two adjusting bolts 17 synchronously rotate while jointly jacking or pulling the positioning sleeve 23, so that the position change of the roller shaft 22 and the extrusion roller 13 is realized, the limit jackscrew 33 is screwed again after the adjustment is finished, and the other two extrusion rollers 13 are adjusted by the analogy and then are installed back to the end cover 34 of the pump head 2 again; compared with the prior art, the synchronous adjustment that corresponds adjusting bolt 7 on two carousel 12 has been realized to the antithetical couplet accent mechanism in this embodiment for squeeze roll 13's both ends can synchronous movement, remain roller 22's horizontality throughout, avoided squeeze roll 13 both ends because of the atress inequality that the displacement difference arouses, the operation is stable after the convenient and installation of not only regulation of this embodiment, has very strong practicality.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the utility model in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A stable peristaltic pump is characterized by comprising a base, a pump head and a driving motor, wherein the pump head and the driving motor are arranged on the base, an outlet and an inlet are formed in the pump head, the outlet and the inlet are respectively connected with a material conveying pipeline through stainless steel corrugated pipes, a hose and two rotary tables are arranged in the pump head, two ends of the hose are respectively connected with the outlet and the inlet, a plurality of extrusion rollers matched with the hose are arranged between the two rotary tables, the rotary tables are driven by the driving motor, and hose guide rods are correspondingly arranged on the rotary tables between the adjacent extrusion rollers; a joint adjusting mechanism is arranged between the squeezing roller and the rotary tables in a matched mode, the joint adjusting mechanism comprises bolt seats symmetrically arranged on the two rotary tables, adjusting bolts are screwed on the bolt seats, baffles are fixedly arranged on the adjusting bolts, the adjusting bolts are divided into threaded parts and transmission parts by the baffles, teeth are uniformly distributed on the transmission parts in the circumferential direction, and a transmission chain is arranged between the transmission parts of the two adjusting bolts in a matched mode; the rotatable cover of squeeze roll is established on the roller, the both ends of roller are provided with the position sleeve respectively, the rotatable connection of tip in screw thread portion is in on the position sleeve, be provided with on the carousel respectively with roller and driving chain matched with hole of stepping down.

2. A stabilized peristaltic pump according to claim 1, wherein a transparent viewing window is provided in said pump head.

3. A stabilized peristaltic pump according to claim 1, wherein a lifting lug is provided on said drive motor.

4. A stabilized peristaltic pump according to claim 1, wherein a rotating sleeve is coaxially disposed over said hose guide rod.

5. The stable peristaltic pump as claimed in claim 1, wherein the positioning sleeve includes a first sleeve body and a second sleeve body, the first sleeve body and the second sleeve body are correspondingly provided with a fastening screw hole, a roller shaft through hole and a limiting groove, a fastening screw is screwed in the fastening screw hole, the first sleeve body and the second sleeve body are aligned to form a T-shaped hole, and the end of the screw thread portion of the adjusting bolt has a T-shaped head matching with the T-shaped hole.

6. The stable peristaltic pump of claim 5, wherein the first sleeve body further comprises a limiting top thread engaged with the T-shaped head.