Peristaltic pump

Abstract

The utility model discloses a peristaltic pump. Relates to the technical field of peristaltic pumps. Comprising a main shell, a hose, a roller assembly and a driving assembly. The main shell is provided with a containing space, a feeding port and a discharging port, the feeding port and the discharging port are communicated with the containing space, the roller assembly is rotatably arranged in the containing space, and the driving assembly is suitable for driving the roller assembly to rotate; the hose is partially arranged in the containing space, the two ends of the hose extend out of the feeding port and the discharging port respectively, and the driving assembly drives the roller assembly to rotate so as to be matched with the inner wall of the containing space to extrude the hose. The roller assembly comprises a rotating frame and a plurality of roller bodies arranged on the rotating frame, a limiting part is formed on the rotating frame, the limiting part is suitable for limiting a deformed hose in the first direction, and the first direction is parallel to the axial direction of a rotating shaft of the rotating frame; according to the technical scheme, excessive deformation of the hose can be effectively avoided, the hose is effectively protected, and the service life of the hose is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of pump bodies, and in particular to a peristaltic pump. Background Art

[0002] Peristaltic pumps are usually composed of a motor, a planetary gear assembly and a roller assembly. The motor drives the roller assembly to rotate under the deceleration adjustment of the planetary gear assembly. The rotating roller assembly can squeeze the hose placed between the roller assembly and the pump casing, thereby achieving the purpose of water discharge from the hose. It has the performance of stable fluid flow, reversible fluid and dry operation.

[0003] The roller assembly cooperates with the pump casing to extrude the hose. After long-term use, the hose is easily deformed by the extrusion due to the force in one direction, which in turn affects the service life of the hose and affects the delivery flow to a certain extent. Utility Model Content

[0004] The purpose of this application is to provide a peristaltic pump to solve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the present application provides a peristaltic pump, comprising a main housing, a hose, a roller assembly and a drive assembly;

[0006] The main housing is formed with an accommodating space and a feed port and a discharge port communicated with the accommodating space. The roller assembly is rotatably disposed in the accommodating space. The driving assembly is adapted to drive the roller assembly to rotate.

[0007] The hose is partially disposed in the accommodating space, with both ends extending out of the feed port and the discharge port, respectively. The driving assembly drives the roller assembly to rotate so as to cooperate with the inner wall of the accommodating space to squeeze the hose.

[0008] The roller assembly includes a rotating frame and a plurality of roller bodies disposed on the rotating frame. A limiting portion is formed on the rotating frame, and the limiting portion is adapted to limit the deformed hose along a first direction, wherein the first direction is parallel to the axial direction of the rotating axis of the rotating frame.

[0009] In the above implementation process, the driving assembly can drive the roller assembly to rotate, which is further understood as driving the rotating frame to rotate. When the rotating frame rotates, it drives the roller to rotate and cooperates with the inner wall of the accommodating space to squeeze the hose, thereby realizing the transportation of the fluid in the hose; in this solution, a limiting part is provided on the rotating frame. When the rotating frame rotates, not only the roller body follows the rotation, but the limiting part will also move synchronously. That is, after the hose is squeezed by the roller body and produces a certain deformation, the limiting part that follows will limit the upper and lower positions of the hose, prompting the hose to reset. This can avoid the problem of excessive deformation of the hose due to long-term squeezing in a single direction. This solution can effectively avoid excessive deformation of the hose, effectively protect the hose, and extend the service life of the hose.

[0010] Preferably, the rotating frame includes a top plate, a bottom plate and a connecting column provided between the top plate and the bottom plate;

[0011] The roller body is arranged between the top plate and the bottom plate;

[0012] A first limiting block is provided on the top plate, and a second limiting block is provided on the bottom plate, wherein the first limiting block and the second limiting block are arranged opposite to each other and constitute the limiting portion;

[0013] In the above implementation process, the first limit block and the second limit block constitute a limit part, that is, the first limit block and the second limit block can act on the upper and lower sides of the hose respectively, and cooperate with the rotation of the rotating frame to produce an action similar to the limit squeezing, thereby prompting the hose to be deformed and reset.

[0014] Preferably, the limiting portion is provided in plurality;

[0015] Preferably, the roller body is provided with a plurality of rollers and is distributed at equal angles around the connecting column;

[0016] The included angles between the limiting portion and two adjacent roller bodies are equal.

[0017] Preferably, the main housing includes a top shell and a bottom shell;

[0018] The top shell is suitable for being spliced ​​with the bottom shell to form the accommodating space.

[0019] Preferably, a first limiting groove is formed on the side wall of the bottom shell, and a first protrusion adapted to the first limiting groove is provided on the top shell; a clamping block is provided in the first limiting groove, and a clamping groove suitable for clamping with the clamping block is provided on the first protrusion;

[0020] In the above implementation process, when assembling the top shell and the bottom shell, the first protrusion can be aligned with the first limiting groove, and finally the first protrusion can be inserted into the first limiting groove. During the insertion process, the card slot will also be inserted into the card block, thereby realizing the card connection between the two, and finally realizing the fixation of the top shell and the bottom shell; it is understandable that fixing screws can be used for further fixation later.

[0021] Preferably, an insert block is provided at one end of the top shell close to the bottom shell, and a slot adapted to the insert block is formed on the inner wall of the bottom shell;

[0022] In the above implementation process, when the top shell and the bottom shell are assembled, the insert block can be inserted into the slot, thereby limiting the relative rotation between the two and achieving a stable connection.

[0023] Preferably, a first groove is formed on the top shell, and a second groove is formed on the bottom shell;

[0024] When the top shell and the bottom shell are spliced ​​together, the first groove and the second groove together constitute the feed port and the discharge port and form a limit for the hose;

[0025] In the above implementation process, the first groove and the second groove in this solution cooperate to form the feed port and the discharge port; it can be understood that there are two first grooves and two second grooves; during assembly, the hose can be initially limited by the second groove, and then the top shell can be installed to further close and limit the hose.

[0026] Preferably, the driving assembly includes a driving motor and a gear set arranged in the accommodating space;

[0027] The driving motor drives the roller assembly to rotate through the gear set.

[0028] Compared with the prior art, the beneficial effect of the present application is that: in this solution, a limiting part is provided on the rotating frame. When the rotating frame rotates, not only the roller body follows the rotation, but the limiting part will also move synchronously. That is, after the hose is squeezed by the roller body and produces a certain deformation, the limiting part that follows will limit the upper and lower positions of the hose, prompting the hose to reset. This can avoid the problem of excessive deformation of the hose due to long-term squeezing in a single direction. This solution can effectively avoid excessive deformation of the hose, effectively protect the hose, and extend the service life of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of the explosion structure of one embodiment of the present application;

[0032] Figure 3 This is a schematic structural diagram of a rotating frame according to one embodiment of the present application;

[0033] Figure 4 This is a schematic structural diagram of a rotating frame according to one embodiment of the present application;

[0034] Figure 5 This is a schematic diagram of the overall structure of one embodiment of the present application;

[0035] Among them: 10, main shell; 11, top shell; 111, first protrusion; 1111, slot; 112, plug block; 12, bottom shell; 121, first limiting groove; 122, slot; 123, second groove; 13, feed port; 14, discharge port; 20, hose; 30, roller assembly; 31, roller body; 32, rotating frame; 321, top plate; 322, bottom plate; 323, first limiting block; 324, second limiting block; 325, plug column; 326, connecting column; 41, motor; 42, gear set. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0037] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] In the description of this application, it should be understood that the terms "upper", "lower", "side", "front", "rear", etc. indicate orientations or positional relationships based on the installation, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0040] In the description of this application, it should be noted that the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0041] It should also be noted that, in the embodiments of the present application, the same figure mark represents the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0042] In order to further understand the content, features and effects of the utility model of the present application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0043] Example

[0044] Peristaltic pumps are typically composed of a motor, a planetary gear assembly, and a roller assembly. The motor drives the roller assembly to rotate under the deceleration regulation of the planetary gear assembly. The rotating roller assembly can squeeze the hose placed between the roller assembly and the pump housing, thereby achieving the purpose of hose discharge. It has the performance of stable fluid flow, reversible fluid flow, and dry operation. The roller assembly cooperates with the pump housing to squeeze the hose. After long-term use, due to the unidirectional force, the hose is easily deformed by the squeezing effect, which in turn shortens the service life of the hose and affects the delivery flow to a certain extent.

[0045] In order to solve the above technical problems, this embodiment provides the following technical solutions:

[0046] For details, see Figure 1-5The present embodiment provides a peristaltic pump, comprising a main housing 10, a hose 20, a roller assembly 30 and a drive assembly;

[0047] Specifically, the main housing 10 is formed with an accommodating space and a feed port 13 and a discharge port 14 communicating with the accommodating space. The roller assembly 30 is rotatably disposed in the accommodating space, and the driving assembly is suitable for driving the roller assembly 30 to rotate.

[0048] Specifically, the hose 20 is partially disposed in the accommodating space and its two ends extend out of the feed port 13 and the discharge port 14 respectively. The driving assembly drives the roller assembly 30 to rotate to cooperate with the inner wall of the accommodating space to squeeze the hose 20;

[0049] For details, see Figure 2-3 The roller assembly 30 includes a rotating frame 32 and a plurality of roller bodies 31 disposed on the rotating frame 32. A limiting portion is formed on the rotating frame 32, and the limiting portion is suitable for limiting the deformed hose 20 along a first direction, and the first direction is parallel to the axial direction of the rotation axis of the rotating frame 32;

[0050] In the above scheme, the driving assembly can drive the roller assembly 30 to rotate, which is further understood as driving the rotating frame 32 to rotate. When rotating, the rotating frame 32 drives the roller to rotate and cooperates with the inner wall of the accommodating space to squeeze the hose 20, thereby realizing the transportation of the fluid in the hose 20; in this scheme, a limiting part is provided on the rotating frame 32. When the rotating frame 32 rotates, not only the roller body 31 rotates, but the limiting part also moves synchronously. That is, after the hose 20 is squeezed by the roller body 31 and deformed to a certain extent, the limiting part that follows will limit the upper and lower positions of the hose 20, prompting the hose 20 to reset. This can avoid the problem of excessive deformation of the hose 20 due to long-term squeezing in a single direction. This scheme can effectively avoid excessive deformation of the hose 20, effectively protect the hose 20, and extend the service life of the hose 20.

[0051] For details, see Figure 3-4 The rotating frame 32 includes a top plate 321, a bottom plate 322 and a connecting column 326 provided between the top plate 321 and the bottom plate 322;

[0052] Furthermore, the roller body 31 is disposed between the top plate 321 and the bottom plate 322;

[0053] Specifically, a first limiting block 323 is provided on the top plate 321, and a second limiting block 324 is provided on the bottom plate 322. The first limiting block 323 and the second limiting block 324 are arranged opposite to each other and constitute a limiting portion;

[0054] In the above scheme, the first limit block 323 and the second limit block 324 constitute a limit portion, that is, the first limit block 323 and the second limit block 324 can act on the upper and lower sides of the hose 20 respectively, and cooperate with the rotation of the rotating frame 32 to also produce a similar limit squeezing action, thereby prompting the hose 20 to deform and reset.

[0055] Specifically, in some embodiments, there are multiple limiting portions; further, there are two limiting portions.

[0056] Specifically, the roller body 31 is provided with a plurality of equiangularly distributed around the connecting column 326;

[0057] Furthermore, the included angles between the limiting portion and two adjacent roller bodies 31 are equal.

[0058] Specifically, the main housing 10 includes a top housing 11 and a bottom housing 12;

[0059] Furthermore, the top shell 11 is adapted to be spliced ​​with the bottom shell 12 to form the accommodating space.

[0060] Specifically, a first limiting groove 121 is formed on the side wall of the bottom shell 12, and a first protrusion 111 adapted to the first limiting groove 121 is provided on the top shell 11; a clamping block is provided in the first limiting groove 121, and a clamping groove 1111 adapted to snap-fit ​​with the clamping block is provided on the first protrusion 111;

[0061] In the above scheme, when assembling the top shell 11 and the bottom shell 12, the first protrusion 111 can be aligned with the first limiting groove 121, and finally the first protrusion 111 is inserted into the first limiting groove 121. During the insertion process, the card slot 1111 will also be inserted into the card block, thereby realizing the card connection between the two, and finally realizing the fixation of the top shell 11 and the bottom shell 12; it is understandable that fixing screws can be used for further fixation later.

[0062] Specifically, an insert block 112 is provided at one end of the top shell 11 close to the bottom shell 12, and a slot 122 adapted to the insert block 112 is formed on the inner wall of the bottom shell 12;

[0063] In the above solution, when the top shell 11 and the bottom shell 12 are assembled, the insert block 112 can be inserted into the slot 122, thereby limiting the relative rotation between the two and achieving a stable connection.

[0064] Specifically, a first groove is formed on the top shell 11 and a second groove 123 is formed on the bottom shell 12;

[0065] When the top shell 11 and the bottom shell 12 are spliced ​​together, the first groove and the second groove 123 together form the feed port 13 and the discharge port 14 and form a limit for the hose 20;

[0066] In the above scheme, the first groove and the second groove 123 in this scheme cooperate to form the feed port 13 and the discharge port 14; it can be understood that there are two first grooves and two second grooves 123; during assembly, the hose 20 can be initially limited by the second groove 123, and then the top shell 11 can be installed to further close and limit the hose 20.

[0067] Specifically, the driving assembly includes a driving motor 41 and a gear set 42 disposed in the accommodating space;

[0068] Furthermore, the driving motor 41 drives the roller assembly 30 to rotate via the gear set 42;

[0069] Furthermore, a plug post 325 is provided at the bottom of the rotating frame 32, and the plug post 325 can cooperate with the gear set 42; it should be noted that in the field of peristaltic pumps, the driving motor 41 cooperates with the gear set 42 to realize the rotation of the roller, which is a relatively conventional technology, so this application will not be further elaborated on this; but it can be understood that it does not affect the technical personnel in this field to understand the overall solution.

[0070] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0071] The above description is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application fall within the scope of the technical solution of the present application.

Claims

1. A peristaltic pump, characterized in that: Includes main housing, hose, roller assembly and drive assembly; The main housing is formed with an accommodating space and a feed port and a discharge port communicated with the accommodating space. The roller assembly is rotatably disposed in the accommodating space. The driving assembly is adapted to drive the roller assembly to rotate. The hose is partially disposed in the accommodating space, with both ends extending out of the feed port and the discharge port, respectively. The driving assembly drives the roller assembly to rotate so as to cooperate with the inner wall of the accommodating space to squeeze the hose. The roller assembly includes a rotating frame and a plurality of roller bodies arranged on the rotating frame. A limiting portion is formed on the rotating frame, and the limiting portion is suitable for limiting the deformed hose along a first direction, and the first direction is parallel to the axial direction of the rotating axis of the rotating frame.

2. The peristaltic pump according to claim 1, wherein: The rotating frame includes a top plate, a bottom plate and a connecting column provided between the top plate and the bottom plate; The roller body is arranged between the top plate and the bottom plate; A first limiting block is provided on the top plate, and a second limiting block is provided on the bottom plate. The first limiting block and the second limiting block are arranged opposite to each other and constitute the limiting portion.

3. The peristaltic pump according to claim 2, wherein: There are multiple limiting parts.

4. The peristaltic pump according to claim 3, wherein: The roller body is provided with a plurality of rollers and is distributed at equal angles around the connecting column; The included angles between the limiting portion and two adjacent roller bodies are equal.

5. The peristaltic pump according to any one of claims 1 to 4, characterized in that: The main housing includes a top shell and a bottom shell; The top shell is suitable for being spliced ​​with the bottom shell to form the accommodating space.

6. The peristaltic pump according to claim 5, characterized in that: A first limiting groove is formed on the side wall of the bottom shell, and a first protrusion adapted to the first limiting groove is provided on the top shell; a clamping block is provided in the first limiting groove, and a clamping groove suitable for clamping with the clamping block is provided on the first protrusion.

7. The peristaltic pump according to claim 5, characterized in that: An inserting block is provided at one end of the top shell close to the bottom shell, and a slot adapted to the inserting block is formed on the inner wall of the bottom shell.

8. The peristaltic pump according to claim 5, characterized in that: A first groove is formed on the top shell, and a second groove is formed on the bottom shell; When the top shell and the bottom shell are spliced ​​together, the first groove and the second groove together constitute the feed port and the discharge port and form a limit for the hose.

9. The peristaltic pump according to any one of claims 1 to 4, characterized in that: The driving assembly includes a driving motor and a gear set arranged in the accommodating space; The driving motor drives the roller assembly to rotate through the gear set.

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