CN219139320U - Peristaltic pump head - Google Patents
Peristaltic pump head Download PDFInfo
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- CN219139320U CN219139320U CN202320044415.3U CN202320044415U CN219139320U CN 219139320 U CN219139320 U CN 219139320U CN 202320044415 U CN202320044415 U CN 202320044415U CN 219139320 U CN219139320 U CN 219139320U
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- hose
- pressing block
- upper pressing
- elastic
- assembly
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Abstract
The utility model discloses a peristaltic pump head, which comprises a roller assembly, a shell and further comprises: the pressing block assembly comprises an upper pressing block, a special-shaped tube seat and an elastic cylindrical pin, a hose is arranged at the lower end of the special-shaped tube seat in an inward extending mode to form an elastic clamping portion, and two ends of the hose can be clamped into the elastic clamping portion and fixed; the shell is fixedly arranged on the front side and the rear side of the press block assembly, the hose is arranged between the roller assembly and the upper press block, the press block assembly and the special-shaped tube seat are made into an integrated structure, when the hose is installed, the hose can be directly installed in the press block assembly, a pipe clamp does not need to be lifted in the pump head, the press block assembly and the hose assembly are disassembled and assembled together, and the installation convenience of the hose is greatly improved; when the inner diameter of the hose is larger or the medium pressure in the hose is larger, the hose generates upward pressure on the upper pressing block, at the moment, the elastic cylindrical pins at the two ends of the upper pressing block can be elastically stretched upwards, the pipe pressing gap is enlarged, the pressure of the upper pressing block on the hose is reduced, and the service life of the hose is prolonged.
Description
Technical Field
The utility model relates to the technical field of peristaltic pumps, in particular to a peristaltic pump head.
Background
Peristaltic pumps include a driver, a pump head, and a hose. The device has the characteristics of reversible fluid, dry running, low maintenance cost and the like, and has a larger competitive advantage in the market. However, the existing peristaltic pumps generally have the following two problems:
1. the hose installation convenience is not enough
Currently mainstream pump head hoses are fitted with the following categories: 1. YZ series, its hose installation step is as follows: lifting the pressing block through the rotation of the spanner rod, lifting one side pipe clamp in the pump head, installing one end of a hose, plugging the hose between the pressing block and the roller assembly, lifting the other side pipe clamp in the pump head, installing the other end of the hose, adjusting the length of the hose in the pump head, and finally compacting the pressing block. 2. JY, TH series, its hose mounting steps are as follows: the roller assembly is required to be manually stirred before installation, and the hose is required to be slowly plugged into the pump head after stirring, so that the operation difficulty is high, and the time is very long. Therefore, the conventional hose is not easy to install.
2. The hose has a lower service life
The pressure pipe clearance (the distance between the upper pressing block and the roller assembly) for fixing the hose in the peristaltic pump head is generally fixed, when the inner diameter of the hose is larger or the medium pressure in the hose is larger, the pressing block assembly has larger pressure on the hose, and the service life of the hose is greatly reduced due to long-term use, so that the service life of the hose is generally lower.
In view of the foregoing, it would be desirable to provide a peristaltic pump head that solves the above-mentioned problems, in whole or in part.
Disclosure of Invention
The present utility model aims to solve, at least to some extent, one of the above technical problems in the prior art.
To this end, an object of the present utility model is to propose a peristaltic pump head comprising a roller assembly and a housing, further comprising:
the pressing block assembly comprises an upper pressing block, two special-shaped tube seats and elastic cylindrical pins, wherein the two special-shaped tube seats are respectively positioned at the left side and the right side of the upper pressing block, and two ends of the upper pressing block are respectively hinged with the upper ends of the two special-shaped tube seats through the elastic cylindrical pins; the lower surface of the upper pressing block is recessed upwards to form an arc-shaped surface; the elastic cylindrical pin can be elastically stretched in the stress direction, and when the elastic cylindrical pin is elastically stretched upwards, the upper pressing block moves upwards together;
the lower end of the special-shaped tube seat extends inwards to form an elastic clamping part, and two ends of the hose can be clamped into the elastic clamping part and fixed;
the shell is fixedly arranged on the front side and the rear side of the pressing block assembly, the hose is arranged between the roller assembly and the upper pressing block, and the front end and the rear end of the roller assembly are fixedly connected with the shell.
The beneficial effects of the utility model are as follows:
1. make integral type structure with briquetting subassembly and abnormal shape tube socket, when installing the hose, can directly install in the briquetting subassembly, need not to lift up the pipe strap in the pump head, realize that briquetting subassembly and hose subassembly dismantle jointly, assemble jointly, improve the installation convenience of hose greatly.
2. When the inner diameter of the hose is larger or the medium pressure in the hose is larger, the hose generates upward pressure on the upper pressing block, at the moment, the elastic cylindrical pins at the two ends of the upper pressing block can be elastically stretched upwards, the pipe pressing gap is enlarged, the pressure of the upper pressing block on the hose is reduced, and the service life of the hose is prolonged.
Further, still include the setting element, the setting element set up in the outside of elasticity joint portion and with the lower extreme fixed connection of abnormal shape tube socket, the setting element with have the clearance between the elasticity joint portion, one side that the setting element is close to the casing is provided with the draw-in groove, be provided with the joint spare on the casing, the draw-in groove with joint spare shape adaptation, works as the briquetting subassembly with during the casing equipment, the joint spare card is gone into the draw-in groove.
The locating piece has the advantages that the installation convenience of the shell and the pressing block assembly is improved, and the alignment of the shell and the pressing block assembly can be rapidly judged after the clamping groove and the clamping piece are clamped.
Further, the elastic clamping portion is composed of two elastic clamping teeth, two ends of the hose can be clamped into the two elastic clamping teeth, and one or more elastic clamping portions are arranged.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an external structure;
FIG. 2 is a schematic view of an internal structure;
FIG. 3 is a schematic view of the installation of the press block assembly with the hose;
FIG. 4 is a schematic view of the inside structure of the housing;
fig. 5 is a schematic view of the structure of the elastic cylindrical pin.
The device comprises a 1-upper pressing block, a 2-special-shaped tube seat, a 201-elastic clamping part, a 3-elastic cylindrical pin, a 4-hose, a 5-shell, a 501-clamping piece, a 6-connector, a 7-positioning piece, a 701-clamping groove and an 8-roller assembly.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Examples
The embodiment of the utility model discloses a peristaltic pump head, which comprises a roller assembly 8, a shell 5 and further comprises:
the pressing block assembly comprises an upper pressing block 1, two special-shaped tube seats and elastic cylindrical pins 3, wherein the two special-shaped tube seats 2 are respectively positioned at the left side and the right side of the upper pressing block 1, and two ends of the upper pressing block 1 are respectively hinged with the upper ends of the two special-shaped tube seats 2 through the elastic cylindrical pins 3; the lower surface of the upper pressing block 1 is recessed upwards to form an arc-shaped surface; the elastic cylindrical pin 3 can be elastically stretched in the stress direction, and when the elastic cylindrical pin 3 is elastically stretched upwards, the upper pressing block 1 moves upwards together;
the lower end of the special-shaped tube seat 2 extends inwards to form an elastic clamping part 201, and two ends of the hose 4 can be clamped into the elastic clamping part 201 and fixed;
the casing 5 fixed mounting is in the front and back both sides of briquetting subassembly, and hose 4 sets up between gyro wheel assembly 8 and last briquetting 1, and both ends all are fixed connection with casing 5 around the gyro wheel assembly 8.
In this embodiment, the device further includes a positioning member 7, where the positioning member 7 is disposed on the outer side of the elastic clamping portion 201 and is fixedly connected with the lower end of the special-shaped tube seat 2, a gap is formed between the positioning member 7 and the elastic clamping portion 201, a clamping groove 701 is disposed on one side of the positioning member 7, which is close to the housing 5, a clamping member 501 is disposed on the housing 5, the clamping groove 701 is adapted to the shape of the clamping member 501, and when the briquetting assembly is assembled with the housing 5, the clamping member 501 is clamped into the clamping groove 701.
In this embodiment, the elastic clamping portion 201 is composed of two elastic clamping teeth, and two corresponding hoses 4 are provided. In this embodiment, two ends of the hose 4 are provided with connectors 6, the connectors 6 are made of rigid materials, and the connectors 6 are communicated with the hose 4 and can be clamped into the elastic clamping parts 201; the length of the hose 4 needs to be determined when the connector 6 is provided.
It should be noted that, a gap is formed between the elastic latch and the positioning member 7, and when the hose is clamped into the elastic clamping portion 201, the gap can ensure that the elastic latch does not touch the positioning member 7.
The specific working process is as follows:
1. mounting hose
The shell 5 is separated from the briquetting component, the briquetting component is taken out, the length of the hose 4 in the briquetting component is adjusted, two ends of the hose 4 are respectively clamped into the elastic clamping parts 201 of the two special-shaped tube seats 2, the hose 4 is abutted with the upper briquetting 1, and the hose 4 is installed after the briquetting component is installed and fixed with the shell 5.
2. Automatic adjusting pipe pressing gap
When the inner diameter of the hose 4 is larger or the medium pressure in the hose 4 is larger, the hose 4 generates upward pressure on the upper pressing block 1, and as the two ends of the upper pressing block 1 are connected with the elastic cylindrical pins 3, the elastic cylindrical pins 3 are also subjected to upward force and are elastically stretched, the inner diameter of the elastic cylindrical pins 3 in the up-down direction is elongated, and the pipe pressing gap is enlarged.
Experimental example
The pump head with the diameter of 3.2mm elastic cylindrical pin and the 1.4mm pipe pressing gap is used as an experimental condition, when the inner diameter of a hose is 2mm, the pipe pressing gap can be enlarged to 1.55mm by 1.4mm, and the service life of the hose is prolonged to 200h from 85h (the service life under a common pump head).
Therefore, the service life of the hose can be effectively prolonged by automatically adjusting the pressure pipe gap through the elastic cylindrical pin.
The utility model provides a peristaltic pump head, wherein a pressing block assembly and a special-shaped tube seat are manufactured into an integrated structure, when a hose is installed, the peristaltic pump head can be directly installed in the pressing block assembly, a tube clamp is not required to be lifted in the pump head, the pressing block assembly and the hose assembly are disassembled and assembled together, and the installation convenience of the hose is greatly improved. When the inner diameter of the hose is larger or the medium pressure in the hose is larger, the hose generates upward pressure on the upper pressing block, at the moment, the elastic cylindrical pins at the two ends of the upper pressing block can be elastically stretched upwards, the pipe pressing gap is enlarged, the pressure of the upper pressing block on the hose is reduced, and the service life of the hose is prolonged.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (3)
1. The utility model provides a peristaltic pump head, includes gyro wheel assembly and casing, its characterized in that still includes:
the pressing block assembly comprises an upper pressing block, two special-shaped tube seats and elastic cylindrical pins, wherein the two special-shaped tube seats are respectively positioned at the left side and the right side of the upper pressing block, and two ends of the upper pressing block are respectively hinged with the upper ends of the two special-shaped tube seats through the elastic cylindrical pins; the lower surface of the upper pressing block is recessed upwards to form an arc-shaped surface; the elastic cylindrical pin can be elastically stretched in the stress direction, and when the elastic cylindrical pin is elastically stretched upwards, the upper pressing block moves upwards together;
the lower end of the special-shaped tube seat extends inwards to form an elastic clamping part, and two ends of the hose can be clamped into the elastic clamping part and fixed;
the shell is fixedly arranged on the front side and the rear side of the pressing block assembly, the hose is arranged between the roller assembly and the upper pressing block, and the front end and the rear end of the roller assembly are fixedly connected with the shell.
2. The peristaltic pump head of claim 1 further comprising a positioning member, wherein the positioning member is disposed on the outer side of the elastic clamping portion and fixedly connected with the lower end of the special-shaped tube seat, a gap is formed between the positioning member and the elastic clamping portion, a clamping groove is formed in one side, close to the shell, of the positioning member, a clamping member is arranged on the shell, the clamping groove is matched with the clamping member in shape, and when the pressing block assembly is assembled with the shell, the clamping member is clamped into the clamping groove.
3. A peristaltic pump head as claimed in claim 1, wherein the elastic clamping portion is composed of two elastic clamping teeth, two ends of the hose can be clamped into the two elastic clamping teeth, and one or more elastic clamping portions are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320044415.3U CN219139320U (en) | 2023-01-09 | 2023-01-09 | Peristaltic pump head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320044415.3U CN219139320U (en) | 2023-01-09 | 2023-01-09 | Peristaltic pump head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139320U true CN219139320U (en) | 2023-06-06 |
Family
ID=86598557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320044415.3U Active CN219139320U (en) | 2023-01-09 | 2023-01-09 | Peristaltic pump head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219139320U (en) |
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2023
- 2023-01-09 CN CN202320044415.3U patent/CN219139320U/en active Active
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