Roller mechanism of peristaltic pump

Abstract

The utility model discloses a peristaltic pump roller mechanism which comprises a mounting disc, a transmission shaft is fixedly connected to the center of the mounting disc in a penetrating mode, a plurality of symmetrically-distributed fixing grooves are formed in the outer wall of the mounting disc, and limiting assemblies are arranged in the fixing grooves. The limiting assembly comprises a mounting screw fixedly connected into the fixing groove, the mounting screw is sleeved with a threaded connecting sleeve in a threaded mode, one end of the threaded connecting sleeve slidably extends out of the fixing groove, one end of the threaded connecting sleeve is fixedly connected with a round rod, and the round rod is rotationally sleeved with a limiting sleeve. And a contact layer is fixedly sleeved on the limiting sleeve. The utility model relates to the technical field of peristaltic pumps. According to the peristaltic pump roller mechanism, supporting capacity can be provided for the side face of the hose through the multiple limiting assemblies arranged on the two sides of the hose, so that the hose can make contact with the outer layer of the roller all the time, the phenomenon that the hose falls off is avoided, and the using effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of peristaltic pumps, in particular to a peristaltic pump roller mechanism. Background Art

[0002] The peristaltic pump consists of three parts: a driver, a pump head and a hose. The fluid is isolated in the hose and the driver is used to drive the driving plate to rotate, so that the extrusion rollers on the periphery of the driving plate squeeze the hose to achieve the fluid delivery effect.

[0003] Announcement No. CN 216714665 U discloses a peristaltic pump head roller assembly, comprising a transmission shaft, an upper mounting plate and a lower mounting plate, wherein the upper mounting plate and the lower mounting plate are coaxially fixed on the transmission shaft; a plurality of rollers are symmetrically mounted between the upper mounting plate and the lower mounting plate via a vertical axis, an encoding plate is coaxially fixed above the upper mounting plate, and the transmission shaft extends from a through hole in the center of the encoding plate; the encoding plate has a first magnet arranged in an annular manner on its outer ring, and a second magnet arranged in an annular manner on its inner ring, and the second magnets are respectively located directly above the vertical axis; a first magnetic sensor and a second magnetic sensor are provided above the encoding plate, and the first magnetic sensor is located directly above the first magnet, and the second magnetic sensor is located directly above the second magnet.

[0004] However, the roller has the following disadvantages: when the equipment uses the roller to squeeze the hose, the hose is often not limited, which causes the hose to easily deviate after being stressed, causing it to separate from the roller and unable to be squeezed continuously, thus limiting the use effect.

[0005] Therefore, the utility model provides a peristaltic pump roller mechanism to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a peristaltic pump roller mechanism to solve the above problems.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a peristaltic pump roller mechanism, comprising a mounting plate, a transmission shaft is fixedly connected through the center of the mounting plate, a plurality of symmetrically distributed fixing grooves are opened on the outer wall of the mounting plate, and a plurality of the fixing grooves are each provided with a limit assembly;

[0008] The limiting assembly includes a mounting screw fixedly connected in a fixing groove, a threaded sleeve is provided on the mounting screw, one end of the threaded sleeve slides and extends out of the fixing groove, one end of the threaded sleeve is fixedly connected to a round rod, a limiting sleeve is rotatably provided on the round rod, and a contact layer is fixedly provided on the limiting sleeve.

[0009] Preferably, the mounting plate is provided with three symmetrically distributed semicircular mounting grooves, and a rotating shaft is rotatably penetrated and connected in the three semicircular mounting grooves. A hub is fixedly sleeved on the rotating shaft, and the hose can be conveniently squeezed by using the semicircular mounting grooves, the rotating shaft and the hub in combination.

[0010] Preferably, the fixed sleeve on the wheel hub is provided with a roller outer layer, and the roller outer layer is made of polytetrafluoroethylene material. The roller outer layer arranged outside the wheel hub has a certain high temperature resistance, so that it can facilitate long-term continuous work. At the same time, its friction coefficient is low, which can reduce the contact wear on the hose and increase the service life of the hose.

[0011] Preferably, a plurality of reinforcing sheets are fixedly connected to the outer wall of the mounting plate, and the reinforcing sheets are made of aluminum alloy. The wear resistance of the outer part of the mounting plate can be improved by the provision of the reinforcing sheets.

[0012] Preferably, the mounting plate is made of reinforced plastic, and the transmission shaft is made of stainless steel.

[0013] Preferably, the threaded connection sleeve is made of aluminum alloy, and the contact layer is made of polytetrafluoroethylene. The threaded connection sleeve is made of aluminum alloy to increase its hardness and improve its service life.

[0014] Preferably, the rotating shaft is made of stainless steel, and the wheel hub is made of nylon. The rotating shaft made of stainless steel has higher hardness and stronger corrosion resistance, while the wheel hub made of nylon is lighter.

[0015] Beneficial Effects

[0016] The utility model provides a peristaltic pump roller mechanism. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The peristaltic pump roller mechanism can provide support to the side of the hose by means of a plurality of limit assemblies arranged on both sides of the hose, so that the hose can always contact the outer layer of the roller, thereby preventing the hose from falling off and achieving a better use effect.

[0018] (2) The roller mechanism of the peristaltic pump has a certain high temperature resistance capability through the outer layer of the roller arranged outside the hub, so that it can facilitate long-term continuous operation. At the same time, its friction coefficient is low, which can reduce the contact wear on the hose and increase the service life of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0020] Figure 2It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the distribution structure of the limit assembly in the utility model;

[0022] Figure 4 It is a schematic diagram of the exploded structure of the limit assembly in the utility model.

[0023] In the figure: 1. mounting plate; 2. transmission shaft; 3. fixing groove; 4. limiting assembly; 41. mounting screw; 42. threaded connection sleeve; 43. round rod; 44. limiting sleeve; 45. contact layer; 5. semicircular mounting groove; 6. rotating shaft; 7. wheel hub; 8. outer layer of roller; 9. reinforcing plate. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1:

[0026] See also Figures 1 to 4 A peristaltic pump roller mechanism comprises a mounting plate 1, a transmission shaft 2 is fixedly connected through the center of the mounting plate 1, a plurality of symmetrically distributed fixing grooves 3 are formed on the outer wall of the mounting plate 1, and a limiting component 4 is disposed in each of the plurality of fixing grooves 3;

[0027] The limiting assembly 4 includes a mounting screw 41 fixedly connected in the fixing groove 3, a threaded sleeve 42 is threadedly sleeved on the mounting screw 41, one end of the threaded sleeve 42 slides and extends outside the fixing groove 3, one end of the threaded sleeve 42 is fixedly connected to a round rod 43, a limiting sleeve 44 is rotatably sleeved on the round rod 43, and a contact layer 45 is fixedly sleeved on the limiting sleeve 44.

[0028] Embodiment 2:

[0029] See also Figures 1 to 4This embodiment provides a technical solution based on the first embodiment: three symmetrically distributed semicircular mounting grooves 5 are opened on the mounting plate 1, and a rotating shaft 6 is rotatably penetrated in the three semicircular mounting grooves 5, and a hub 7 is fixedly sleeved on the rotating shaft 6; a roller outer layer 8 is fixedly sleeved on the hub 7, and the roller outer layer 8 is made of polytetrafluoroethylene; a plurality of reinforcing plates 9 are fixedly connected to the outer wall of the mounting plate 1, and the reinforcing plates 9 are made of aluminum alloy; the mounting plate 1 is made of reinforced plastic material, and the transmission shaft 2 is made of stainless steel material; the threaded connection sleeve 42 is made of aluminum alloy material, and the contact layer 45 is made of polytetrafluoroethylene material; the rotating shaft 6 is made of stainless steel material, and the hub 7 is made of nylon material.

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] In the description of this article, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A peristaltic pump roller mechanism, comprising a mounting plate (1), characterized in that: A transmission shaft (2) is fixedly connected and penetrated through the center of the mounting plate (1); a plurality of symmetrically distributed fixing grooves (3) are formed on the outer wall of the mounting plate (1); and a limiting assembly (4) is disposed in each of the plurality of fixing grooves (3); The limit assembly (4) comprises a mounting screw (41) fixedly connected in the fixing groove (3); a threaded sleeve (42) is threadedly sleeved on the mounting screw (41); one end of the threaded sleeve (42) slides and extends outside the fixing groove (3); one end of the threaded sleeve (42) is fixedly connected to a round rod (43); a limit sleeve (44) is rotatably sleeved on the round rod (43); and a contact layer (45) is fixedly sleeved on the limit sleeve (44).

2. A peristaltic pump roller mechanism according to claim 1, characterized in that: The installation plate (1) is provided with three symmetrically distributed semicircular installation grooves (5), and a rotating shaft (6) is rotatably penetrated and connected in the three semicircular installation grooves (5), and a wheel hub (7) is fixedly sleeved on the rotating shaft (6).

3. A peristaltic pump roller mechanism according to claim 2, characterized in that: The wheel hub (7) is fixedly sleeved with a roller outer layer (8), and the roller outer layer (8) is made of polytetrafluoroethylene.

4. A peristaltic pump roller mechanism according to claim 1, characterized in that: A plurality of reinforcing plates (9) are fixedly connected to the outer wall of the installation plate (1), and the reinforcing plates (9) are made of aluminum alloy.

5. A peristaltic pump roller mechanism according to claim 1, characterized in that: The installation plate (1) is made of reinforced plastic material, and the transmission shaft (2) is made of stainless steel material.

6. A peristaltic pump roller mechanism according to claim 1, characterized in that: The threaded connection sleeve (42) is made of aluminum alloy, and the contact layer (45) is made of polytetrafluoroethylene.

7. A peristaltic pump roller mechanism according to claim 2, characterized in that: The rotating shaft (6) is made of stainless steel, and the wheel hub (7) is made of nylon.

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