CN209908732U - Peristaltic pump capable of avoiding bending of hose - Google Patents

Abstract

The utility model discloses a peristaltic pump that avoids the bending of a hose, comprising: a hose, a base, a motor, a synchronous belt, a first synchronizing wheel and a second synchronizing wheel, the motor is arranged on the base, and the first synchronizing wheel The wheel is arranged on the output shaft of the motor, the second synchronous wheel is arranged on the base, the synchronous belt is arranged on the first synchronous wheel and the second synchronous wheel, and the hose is linearly arranged on the base and located on the synchronous belt Below the synchronous belt, several rollers are arranged at intervals. When the rollers run with the synchronous belt, at least one of the rollers presses on the hose and rolls forward. Through the above method, in the peristaltic pump of the present invention, which avoids the bending of the hose, the synchronous belt drives the roller, which effectively increases the distance between two adjacent rollers, increases the volume of the "pillow"-shaped fluid, and reduces the friction between the roller and the hose. The contact frequency can prolong the service life of the hose, and the hose does not need to be bent and arranged, and the damage when it contacts the roller is small, and the durability is good.

Description

A peristaltic pump that avoids hose bending

technical field

The utility model relates to the technical field of peristaltic pumps, in particular to a peristaltic pump which avoids the bending of a hose.

Background technique

In the prior art, the peristaltic pump usually utilizes two adjacent rollers on the rotor to form a "pillow"-shaped fluid on the pump tube. The volume of the "pillow" depends on the inner diameter of the pump tubing and the geometry of the rotor.

In order to increase the volume of the "pillow", the peristaltic pump usually bends the hose, and uses the inner concave surface of the limit block to limit the hose, and then increases the distance between the two adjacent rollers as much as possible, but due to the geometry of the rotor Characteristic limitation, the volume of "pillow" is usually small, which can only be compensated by the rotation speed, sacrificing the life of the hose.

In addition, the hose of the peristaltic pump is usually made of silicone tube. Although it has good wear resistance and toughness and can adapt to the friction and rolling of the rotor, it is still a wearing part and needs to be replaced and maintained frequently. The damage was further deepened during rolling, and the life was further shortened, and improvement was required.

Utility model content

The main technical problem to be solved by the utility model is to provide a peristaltic pump which avoids the bending of the hose, and increases the service life of the hose while increasing the flow rate of the peristaltic pump.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide a peristaltic pump that avoids bending of the hose, including: a hose, a base, a motor, a synchronous belt, a first synchronizing wheel and a second synchronizing wheel, so The motor is arranged on the base, the first synchronous wheel is arranged on the output shaft of the motor, the second synchronous wheel is arranged on the base, and the synchronous belt is arranged on the first synchronous wheel and the second synchronous wheel, so The hose is linearly arranged on the base and below the synchronous belt, and the synchronous belt is provided with several rollers at intervals. When the rollers run with the synchronous belt, at least one of the rollers presses on the hose and rolls forward.

In a preferred embodiment of the present invention, a bracket corresponding to the second synchronizing wheel is arranged on the base so that the first synchronizing wheel and the second synchronizing wheel are located at the same height position.

In a preferred embodiment of the present invention, the width of the roller is larger than the outer diameter of the hose.

In a preferred embodiment of the present invention, two pipe clamps corresponding to the hoses are arranged on the base at intervals, and the pipe clamps are fixed on the base with bolts to limit the position of the hoses.

In a preferred embodiment of the present utility model, a protective cover is provided on the base, and the motor, the synchronous belt, the first synchronous wheel and the second synchronous wheel are located in the protective cover.

In a preferred embodiment of the present invention, two ends of the protective cover are provided with openings.

In a preferred embodiment of the present invention, the rollers are fixed on the synchronous belt by screws, and the outer circles of the first synchronous wheel and the second synchronous wheel are concavely provided with annular avoidance grooves corresponding to the heads of the screws.

The beneficial effects of the utility model are: the peristaltic pump pointed out by the utility model that avoids the bending of the hose, especially adopts the synchronous belt to drive the rollers, effectively increases the distance between two adjacent rollers, and improves the flow rate of the "pillow"-shaped fluid. Volume, while ensuring the flow, the contact frequency between the roller and the hose is reduced, thereby prolonging the service life of the hose, and the hose does not need to be bent and arranged, the damage when contacting the roller is small, and the durability is good.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, under the premise of no creative work, other drawings can also be obtained from these drawings, wherein:

FIG. 1 is a schematic structural diagram of a preferred embodiment of a peristaltic pump that avoids hose bending according to the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to Fig. 1, the utility model embodiment includes:

As shown in FIG. 1, the peristaltic pump for avoiding the bending of the hose includes: a hose 9, a base 1, a motor 6, a timing belt 2, a first synchronizing wheel 7 and a second synchronizing wheel 3, and the motor 6 is arranged on the base 1 Above, the first synchronizing wheel 7 is arranged on the output shaft of the motor 6, and the motor 6 is controlled by a variable frequency speed regulator, which is conducive to changing the rotational speed of the first synchronizing wheel 7 and has flexible operation.

The second synchronizing wheel 3 is arranged on the base 1, the synchronous belt 2 is arranged on the first synchronizing wheel 7 and the second synchronizing wheel 3, and the base 1 is provided with a bracket 10 corresponding to the second synchronizing wheel 3 The first synchronizing wheel and the second synchronizing wheel are located at the same height position.

A protective cover 5 is provided on the base 1 , and the motor 6 , the synchronous belt 2 , the first synchronous wheel 7 and the second synchronous wheel 3 are located in the protective cover 5 to enhance the protection during operation. Both ends of the protective cover 5 are provided with openings to facilitate the installation and maintenance of the hose 9 .

The traditional rotor is replaced by the synchronous belt 2, which makes up for the structural defect of the rotor. The hose 9 is linearly arranged on the base 1 and below the timing belt 2, and two pipe clips 8 corresponding to the hose 9 are arranged at intervals on the base 1, and the pipe clips 8 are fixed to the base 1 by bolts. The upper limit of the hose 9 is realized, the installation is convenient, the straight arrangement of the hose 9 is ensured, and the problem of bending and loosening is avoided. The straight arrangement of the hose 9 is not easy to crack and has good durability.

The synchronous belt 2 is provided with several rollers 4 at intervals. The roller 4 includes a mounting frame, and the installation frame is fixed on the synchronous belt 2 with screws. An annular escape groove corresponding to the head of the screw is provided to ensure the stability of operation.

When the roller 4 runs with the timing belt 2, at least one roller presses on the hose 9 to roll forward, and drives the liquid in the hose 9 to flow forward. The width of the roller 4 is larger than the outer diameter of the hose 9. , to ensure the efficiency of the forward flow of the liquid in the hose 9.

Due to the structural characteristics of the synchronous belt 2, the distance between the two adjacent rollers 4 can be larger, which can effectively increase the volume of the "pillow"-shaped fluid, ensure the flow rate and reduce the contact frequency between the roller 4 and the hose 9, thereby extending the soft Service life of tube 9.

To sum up, a peristaltic pump that avoids the bending of the hoses pointed out by the utility model adopts the hoses arranged in a straight line, and uses the synchronous belt 2 to replace the traditional rotor, which improves the working efficiency of the pumping and the hoses. service life.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (7)

1. A peristaltic pump for avoiding bending of a hose, characterized in that it comprises: a hose, a base, a motor, a timing belt, a first synchronizing wheel and a second synchronizing wheel, the motor is arranged on the base, and the first The synchronous wheel is arranged on the output shaft of the motor, the second synchronous wheel is arranged on the base, the synchronous belt is arranged on the first synchronous wheel and the second synchronous wheel, and the hose is linearly arranged on the base and located in the synchronous Below the belt, several rollers are arranged at intervals on the synchronous belt. When the rollers run with the synchronous belt, at least one of the rollers presses on the hose and rolls forward. 2 . The peristaltic pump according to claim 1 , wherein a bracket corresponding to the second synchronizing wheel is arranged on the base so that the first synchronizing wheel and the second synchronizing wheel are located at the same height position. 3 . . 3 . The peristaltic pump according to claim 1 , wherein the width of the roller is larger than the outer diameter of the hose. 4 . 4. The peristaltic pump according to claim 1, characterized in that, two pipe clamps corresponding to the hoses are arranged at intervals on the base, and the pipe clamps are fixed on the base with bolts to realize soft tube limit. 5. The peristaltic pump according to claim 1, wherein a protective cover is provided on the base, and the motor, the synchronous belt, the first synchronous wheel and the second synchronous wheel are located in the protective cover . 6 . The peristaltic pump for avoiding bending of the hose according to claim 5 , wherein openings are provided at both ends of the protective cover. 7 . 7 . The peristaltic pump according to claim 1 , wherein the rollers are fixed on the synchronous belt with screws, and the outer circles of the first synchronous wheel and the second synchronous wheel are concavely provided with Annular escape groove corresponding to the screw head.

Images