CN221879658U - Peristaltic pump for laboratory - Google Patents

Abstract

The utility model provides a peristaltic pump for a laboratory, which comprises a peristaltic pump shell, wherein a sealing structure is arranged at the top of the peristaltic pump shell, a rotating shaft is rotatably connected inside the peristaltic pump shell, peristaltic tubes are distributed inside the peristaltic pump shell in a semicircular mode around the rotating shaft, and fixing structures are sleeved at two ends of each peristaltic tube. According to the peristaltic pump, the fixing structure is designed, when the peristaltic pump is used, the first knob is screwed, the first locking screw is driven to withdraw from the upper sealing cover and the peristaltic pump shell, then the peristaltic tube is placed between the peristaltic pump shell and the upper sealing cover, the first locking screw is reset, the outer fixing sleeve is slid along the peristaltic tube until one end of the outer fixing sleeve is inserted into the concave hole, at the moment, the rotary disc and the screw rod can be rotated, the pressing sheet is driven to move towards the peristaltic tube, the peristaltic tube is further fixed, and the problems that the peristaltic tube is greatly damaged due to a clamping type installation mode when the peristaltic tube is installed, and the peristaltic tube is inconvenient to install and detach due to a fixed installation method are solved.

Description

A peristaltic pump for laboratory use

Technical Field

The utility model relates to the technical field of peristaltic tubes, in particular to a peristaltic pump for laboratories.

Background Art

The peristaltic pump consists of three parts: the driver, the pump head and the hose. The main competitive advantages of the peristaltic pump are that the fluid is isolated in the pump tube, the pump tube can be replaced quickly, the fluid is reversible, it can run dry, and the maintenance cost is low.

The peristaltic pump tubes currently used in the market are generally made of PVC, silicone rubber, rubber and other materials, and are used in different environments and places. At present, when installing peristaltic pump tubes, they are generally divided into two types: clamping or fixed. The clamping fixing method is more harmful to the peristaltic tube, while the fixed installation method is not convenient for the installation and disassembly of the peristaltic tube.

Therefore, in response to the above problems, we propose a peristaltic pump for laboratory use.

Utility Model Content

The purpose of the utility model is to provide a peristaltic pump for laboratory use to solve the problems raised by the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a peristaltic pump for laboratory use, comprising a peristaltic pump housing, a sealing structure is arranged on the top of the peristaltic pump housing, a rotating shaft is rotatably connected inside the peristaltic pump housing, peristaltic tubes are distributed in a semicircle around the rotating shaft inside the peristaltic pump housing, fixed structures are arranged at both ends of the peristaltic tubes, and a second knob is arranged on the front side wall of the peristaltic pump housing.

As a further description of the utility model: the fixed structure includes an outer fixed sleeve, the inner wall of the outer fixed sleeve is fixedly installed with a rubber ring, the inner diameter of the rubber ring matches the outer diameter of the peristaltic tube, and a pressing sheet is slidably connected between the two groups of rubber rings, and the pressing sheet is an arc-shaped rubber sheet.

As a further description of the utility model: the outer fixed sleeve is internally threadedly connected to a screw rod, one end of the screw rod is rotatably connected to the pressing piece, and a turntable is fixedly installed on the end of the screw rod away from the pressing piece.

As a further description of the utility model: the sealing structure includes an upper sealing cover, and recessed holes of the same size and symmetry with each other are provided at both ends of the upper sealing cover and inside the pump housing of the peristaltic pump, and the inner diameter of the recessed holes matches the outer diameter of the external fixed sleeve.

As a further description of the utility model: the upper sealing cover is internally threadedly connected with a first locking screw, the peristaltic pump housing is internally provided with a threaded hole adapted for the first locking screw, one end of the first locking screw is fixedly mounted with a first knob, and the upper surface of the upper sealing cover is fixedly mounted with a handle.

As a further description of the utility model: a rotor pressure block is fixedly sleeved on the rotating shaft, and a second locking screw is fixedly installed on one end of the second knob, wherein the second locking screw penetrates the pump housing of the peristaltic pump and is threadedly connected thereto.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model designs a sealing structure and a fixing structure on a peristaltic pump for laboratory use. When in use, the first knob is turned to drive the first locking screw to withdraw from the upper sealing cover and the inside of the peristaltic pump casing, then the peristaltic tube is placed between the peristaltic pump casing and the upper sealing cover, and the first locking screw is reset, and then the outer fixing sleeve is slid along the peristaltic tube until one end of the outer fixing sleeve is inserted into the inside of the concave hole, at this time the turntable and the screw rod can be rotated to drive the pressing sheet to move in the direction of the peristaltic tube, thereby fixing the peristaltic tube, thereby reducing the problem that the clamping installation method causes greater damage to the peristaltic tube during installation, and the fixed installation method is inconvenient for installation and disassembly of the peristaltic tube.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the sealing structure of the present utility model;

FIG3 is a schematic diagram of the structure of the peristaltic tube and its components of the present invention;

FIG. 4 is a schematic diagram of the fixing structure of the present utility model.

In the figure: 1. peristaltic pump housing; 2. sealing structure; 201. upper sealing cover; 202. recessed hole; 203. first locking screw; 204. first knob; 205. handle; 3. rotating shaft; 4. peristaltic tube; 5. fixing structure; 501. outer fixing sleeve; 502. rubber ring; 503. pressing piece; 504. screw rod; 505. turntable; 6. second knob.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 4. The utility model provides a technical solution: a peristaltic pump for laboratory use, comprising a peristaltic pump housing 1, a sealing structure 2 is arranged on the top of the peristaltic pump housing 1, a rotating shaft 3 is rotatably connected inside the peristaltic pump housing 1, peristaltic tubes 4 are distributed in a semicircle around the rotating shaft 3 inside the peristaltic pump housing 1, fixing structures 5 are sleeved on both ends of the peristaltic tubes 4, and a second knob 6 is arranged on the front side wall of the peristaltic pump housing 1.

In this embodiment: the fixed structure 5 includes an outer fixed sleeve 501, and a rubber ring 502 is fixedly installed on the inner wall of the outer fixed sleeve 501. The inner diameter of the rubber ring 502 matches the outer diameter of the peristaltic tube 4. A pressing sheet 503 is slidably connected between the two groups of rubber rings 502, and the pressing sheet 503 is an arc-shaped rubber sheet.

During specific use: the rubber ring 502 can increase the friction between the outer fixed sleeve 501 and the peristaltic tube 4 to preliminarily fix the peristaltic tube 4 and the outer fixed sleeve 501 .

In this embodiment, the outer fixed sleeve 501 is internally threadedly connected to a screw rod 504 , one end of the screw rod 504 is rotatably connected to the pressing plate 503 , and a rotating disk 505 is fixedly installed on one end of the screw rod 504 away from the pressing plate 503 .

When used specifically, the turntable 505 and the screw rod 504 are rotated to drive the pressing sheet 503 to move toward the peristaltic tube 4 , thereby performing secondary fixation on both ends of the peristaltic tube 4 .

In this embodiment, the sealing structure 2 includes an upper sealing cover 201 , and recessed holes 202 of the same size and symmetrical to each other are provided at both ends of the upper sealing cover 201 and inside the peristaltic pump housing 1 . The inner diameter of the recessed holes 202 matches the outer diameter of the outer fixed sleeve 501 .

In specific use: the concave hole 202 can be used to fix the external fixing sleeve 501 .

In this embodiment: the upper sealing cover 201 is internally threadedly connected with a first locking screw 203, a threaded hole adapted for the first locking screw 203 is opened inside the peristaltic pump housing 1, a first knob 204 is fixedly installed at one end of the first locking screw 203, and a handle 205 is fixedly installed on the upper surface of the upper sealing cover 201.

During specific use: the first knob 204 and the first locking screw 203 are used in combination to facilitate the installation and removal of the upper sealing cover 201 and the peristaltic pump housing 1 , and the handle 205 facilitates the separation of the upper sealing cover 201 and the peristaltic pump housing 1 .

In this embodiment: a rotor pressing block is fixedly sleeved on the rotating shaft 3, and a second locking screw is fixedly installed on one end of the second knob 6, wherein the second locking screw penetrates the pump housing 1 of the peristaltic pump and is threadedly connected thereto.

During specific use: the rotor pressing block can rotate with the rotating shaft 3 to reciprocately squeeze the peristaltic tube 4 to transport the medium through the peristaltic tube 4. The second locking screw and the second knob 6 are used in combination to install the peristaltic pump housing 1 on the driving device so that the output end of the driving device is connected to the rotating shaft 3.

Working principle: When installing the peristaltic tube 4, turn the first knob 204 to drive the first locking screw 203 to withdraw from the upper sealing cover 201 and the inside of the peristaltic pump housing 1, and lift the upper sealing cover 201 through the handle 205, then place the peristaltic tube 4 between the peristaltic pump housing 1 and the upper sealing cover 201, and reset the first locking screw 203, then slide the outer fixed sleeve 501 along the peristaltic tube 4 until one end of the outer fixed sleeve 501 is inserted into the recessed hole 202, at this time, the turntable 505 and the screw 504 can be rotated to drive the pressing piece 503 to move in the direction of the peristaltic tube 4, thereby fixing the peristaltic tube 4, reducing the problem that the clamping installation method causes greater damage to the peristaltic tube 4 during installation, and the fixed installation method is inconvenient for installation and disassembly of the peristaltic tube 4.

The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. Peristaltic pump for laboratory, including peristaltic pump shell (1), its characterized in that: peristaltic pump case (1) top is provided with seal structure (2), peristaltic pump case (1) inside rotates and is connected with axis of rotation (3), peristaltic tube (4) are semi-circular distributed around axis of rotation (3) inside peristaltic pump case (1), peristaltic tube (4) both ends cover is equipped with fixed knot constructs (5), fixed knot constructs (5) including outer fixed sleeve (501), outer fixed sleeve (501) inner wall fixed mounting has rubber circle (502), the internal diameter size of rubber circle (502) and the external diameter size phase-match of peristaltic tube (4), two sets of sliding connection has preforming (503) between rubber circle (502), preforming (503) are arc rubber piece, peristaltic pump case (1) front lateral wall is provided with second knob (6).

2. A peristaltic pump for laboratory use as claimed in claim 1, wherein: the screw rod (504) is connected to the internal thread of the external fixation sleeve (501), one end of the screw rod (504) is rotationally connected with the pressing sheet (503), and a turntable (505) is fixedly arranged at one end of the screw rod (504) far away from the pressing sheet (503).

3. A peristaltic pump for laboratory use as claimed in claim 1, wherein: the sealing structure (2) comprises an upper sealing cover (201), concave holes (202) which are identical in size and symmetrical to each other are formed in two ends of the upper sealing cover (201) and the inside of a peristaltic pump shell (1), and the inner diameter size of each concave hole (202) is matched with the outer diameter size of an outer fixing sleeve (501).

4. A peristaltic pump for laboratory use as claimed in claim 3, wherein: the peristaltic pump is characterized in that a first locking screw (203) is connected with the inner thread of the upper sealing cover (201), a threaded hole for the first locking screw (203) to be matched is formed in the peristaltic pump shell (1), a first knob (204) is fixedly mounted at one end of the first locking screw (203), and a handle (205) is fixedly mounted on the upper surface of the upper sealing cover (201).

5. A peristaltic pump for laboratory use as claimed in claim 1, wherein: two sets of rotor pressing blocks are fixedly sleeved on the rotating shaft (3).

6. A peristaltic pump for laboratory use as claimed in claim 1, wherein: a second locking screw is fixedly arranged at one end of the second knob (6), and the second locking screw penetrates through the peristaltic pump shell (1) and is in threaded connection with the peristaltic pump shell.