Centrifugal machine convenient to clean

Abstract

The utility model discloses a centrifugal machine convenient to clean, and belongs to the technical field of centrifugal machines. The centrifugal machine comprises a centrifugal machine body. The cleaning assembly comprises a first pump body, a first pipeline, a second pipeline and a circular ring pipe; one end of the first pipeline communicates with the output end of the first pump body, and the other end communicates with the circular ring pipe; one end of the second pipeline is connected with the annular pipe; the second pipelines are distributed in parallel at equal intervals along the circle of the circular ring pipe corresponding to reagent pipe holes of the centrifugal machine body; the upper cover of the centrifuge body is provided with a through hole corresponding to the second pipeline; one end, far away from the circular ring pipe, of the second pipeline extends into the reagent pipe hole through the through hole; and the second pipeline slides along the through hole. Water can be accurately injected into the reagent tube hole, so that water is only conveyed into the reagent tube hole to clean the reagent tube hole, and meanwhile, the reagent tube hole blocks the water from splashing, prevents the water from splashing to other places, and prevents the water from involving other places.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifuges, and in particular relates to a centrifuge which is easy to clean. Background Art

[0002] Centrifuges are often used in clinical medicine, biochemistry and immunology. Centrifuges are frequently used medical instruments that mainly use the centrifugal force of rotational motion and the difference in the coefficient and buoyancy density of substances to separate, concentrate and purify.

[0003] When using a centrifuge for testing, repeated operation over time inevitably leads to leakage or test tube breakage, which can contaminate the reagent tube holes used to install the reagent tubes. These holes need to be cleaned. Most cleaning procedures use cotton swabs to clean the holes one by one, which is tedious, especially when the amount of leakage is large.

[0004] In response to the above problems, the invention with patent publication number CN115501986A discloses a turntable centrifuge and a cleaning method thereof. The turntable centrifuge includes a centrifuge housing, a servo motor and an inner cylinder are fixed in the centrifuge housing, and the interior of the inner cylinder is coaxially connected to the centrifuge turntable. The output shaft of the servo motor is connected to the centrifuge turntable and can drive the centrifuge turntable to rotate around its own axis; the centrifuge housing is also provided with an upper cover; a plurality of reagent tubes for installing reagent tubes are distributed on the centrifuge turntable, and the lower ends of the reagent tubes extend from the outer wall of the centrifuge turntable; an annular liquid collecting trough is fixed on the inner side wall of the inner cylinder opposite to the lower end of the reagent tube, and an annular liquid collecting pipe lower than the liquid collecting trough is fixed on the outer wall of the inner cylinder. The liquid collecting pipe is connected to the liquid collecting trough through a liquid guide pipe, and the liquid collecting pipe is provided with a discharge pipe extending out of the centrifuge housing.

[0005] This turntable centrifuge can be cleaned directly by spraying water to clean the centrifuge turntable and reagent tubes. During cleaning, laboratory tap water or cleaning fluid is connected to the water pump, pressurized by the water pump, the upper cover is closed, and the centrifuge turntable is rotated at a low speed. The water nozzle automatically rinses each reagent tube. The cleaning fluid is discharged from the liquid collection tank, liquid collection pipe, etc., making the cleaning operation simple. However, when the water nozzle sprays water into the reagent tubes, it also sprays water into the centrifuge turntable, making it difficult to aim the water nozzle at the reagent tubes and fill the reagent tubes with water, resulting in poor cleaning effect. At the same time, water splashes and splashes everywhere, splashing all over the centrifuge housing, and even splashing into the four corners of the centrifuge housing and becoming unable to be discharged. Utility Model Content

[0006] The utility model provides a centrifuge which is easy to clean, so as to solve the technical problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A centrifuge that is easy to clean comprises: a centrifuge body; a cleaning assembly comprising a first pump body, a first pipe, a second pipe and a circular tube; one end of the first pipe is connected to the output end of the first pump body, and the other end thereof is connected to the circular tube; one end of the second pipe is connected to the circular tube; the second pipes are arranged in parallel and at equal intervals along the circle of the circular tube corresponding to reagent tube holes of the centrifuge body; a through hole is formed in the upper cover of the centrifuge body corresponding to the second pipe; one end of the second pipe away from the circular tube extends into the reagent tube hole through the through hole; and the second pipe slides along the through hole.

[0009] As a further improvement of the technical solution, the first pump body, the first pipeline and the annular tube are all located outside the centrifuge body; the diameter of the second pipeline is smaller than the diameter of the reagent tube hole.

[0010] As a further improvement of the technical solution, two ports are provided at one end of the first pipeline away from the annular tube, and one of the ports is connected to the output end of the first pump body.

[0011] As a further improvement of the technical solution, the cleaning assembly also includes a second pump body and a valve; the second pump body is located outside the centrifuge body; the input end of the second pump body is connected to an end of the first pipeline away from the circular tube and not connected to the first pump body; the valves are respectively arranged on the ports where the first pipeline is connected to the first pump body and the second pump body.

[0012] As a further improvement of the technical solution, the valve is a solenoid valve; the first pump body, the second pump body and the valve are connected to the control system circuit of the centrifuge body.

[0013] As a further improvement of the technical solution, the reagent tube holes are distributed vertically.

[0014] As a further improvement of the technical solution, the cleaning assembly also includes a lifting structure; the lifting mechanism is arranged on the outside of the upper cover of the centrifuge body; the lifting structure is connected to the annular tube, driving the annular tube to move up and down

[0015] As a further improvement of the technical solution, the lifting structure includes a connecting rod and a sleeve; one end of the connecting rod is vertically connected to the outer side of the upper cover of the centrifuge body; the connecting rod is located in the center of the annular tube; one end of the sleeve extends into the connecting rod and is slidably connected to the connecting rod, and the other end is connected to the inner side of the annular tube through the rod body; pin holes are horizontally opened on the connecting rod and the sleeve; the connecting rod and the sleeve are fixed by a pin

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The present application can accurately inject water into the reagent tube hole while preventing water from splashing elsewhere; when the centrifuge body is centrifuging, the upper cover is closed, the second pipe moves upward, and the end of the second pipe away from the circular tube moves upward away from the reagent tube hole while not contacting the reagent tube, leaving a gap between the second pipe and the reagent tube so as not to interfere with the operation of the centrifuge body. When the reagent tube hole needs to be cleaned, the reagent tube is taken out, and then the second pipe is moved so that the end of the second pipe away from the circular tube extends into the bottom end of the reagent tube hole, the first pump body is started, the input end of the first pump body absorbs water, and the output end delivers water, and water is injected into the reagent tube hole through the first pipe, the circular tube, and the second pipe in turn to clean the leaked liquid in the reagent tube hole. Because the end of the second pipe away from the circular tube penetrates into the reagent tube hole, water is only transported into the reagent tube hole to clean the reagent tube hole. At the same time, the reagent tube hole blocks the splashing of water, preventing water from splashing elsewhere and avoiding water from involving elsewhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the structure of a centrifuge that is easy to clean provided by the utility model Figure 1 ;

[0020] Figure 2 The structure diagram provided by the utility model Figure 2 ;

[0021] Figure 3 for Figure 2 Front view of

[0022] Figure 4 The structure diagram provided by the utility model Figure 3 ;

[0023] Figure 5 The structure diagram provided by the utility model Figure 4 ;

[0024] Figure numerals: 1-centrifuge body, 11-reagent tube hole, 2-cleaning assembly, 21-first pump body, 22-first pipeline, 23-second pipeline, 24-annular tube, 25-second pump body, 26-valve, 27-connecting rod, 28-sleeve. DETAILED DESCRIPTION

[0025] To further clarify the objectives, technical solutions, and advantages of the embodiments of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a portion of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments derived by persons of ordinary skill in the art without requiring creative effort are within the scope of protection of the present invention. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings understood by persons of ordinary skill in the field to which the present invention pertains.

[0026] The words "first", "second" and similar terms used in the specification and claims of the utility model invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "a", "an" or "the" and similar terms do not indicate a quantitative limitation, but rather indicate the presence of at least one. Words such as "include" or "comprise" mean that the elements or objects preceding "include" or "comprise" include the features, wholes, steps, operations, elements and / or components listed after "include" or "comprise", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] like Figures 1 to 5As shown, a centrifuge that is easy to clean comprises: a centrifuge body 1 and a cleaning assembly 2; a reagent tube hole 11 is provided in the centrifuge body 1, and the reagent tube hole 11 is distributed vertically; the centrifuge body 1 is a top-opening structure, and an upper cover is provided on the top; the cleaning assembly 2 comprises a first pump body 21, a first pipe 22, a second pipe 23 and a circular tube 24; one end of the first pipe 22 is connected to the output end of the first pump body 21, and the other end thereof is connected to the circular tube 24; the input end of the first pump body 21 is connected to a container filled with water; one end of the second pipe 23 and one end of the second pipe 23 are connected to the circular tube 24; the reagent tube holes 11 of the corresponding centrifuge body 1 of the second pipe 23 are distributed in parallel and at equal intervals along the circle of the circular tube 24; the first pipe 22 is a hose, and the second pipe The channel 23 and the annular tube 24 are hard tubes, which are tubes with high hardness and not easy to deform, and can be made of metal or plastic; the first pump body 21, the first pipe 22 and the annular tube 24 are all located on the outside of the centrifuge body 1. Optionally, the first pump body 21 is a small pump body, and the first pump body 21 is arranged on the outer wall of the centrifuge body 1; the diameter of the second pipe 23 is smaller than the diameter of the reagent tube hole 11; the upper cover of the centrifuge body 1 is provided with a through hole corresponding to the second pipe 23, and the through hole corresponds to the distribution of the reagent tube hole 11. When the upper cover is closed, the through hole is located directly above the reagent tube hole 11; the end of the second pipe 23 away from the annular tube 24 extends into the reagent tube hole 11 through the through hole, and the second pipe 23 slides up and down along the through hole and freely extends into or out of the reagent tube hole 11. In addition, it should be noted that the specific models of the first pump body and the centrifuge body are not the improvement points of this application and will not be described here.

[0030] Working method:

[0031] When the centrifuge body 1 is centrifuged, the upper cover is closed, and the second pipe 23 moves upward. The end of the second pipe 23 away from the annular pipe 24 moves upward away from the reagent tube hole 11, and does not contact the reagent tube. A gap is left between the second pipe and the reagent tube so as not to interfere with the operation of the centrifuge body 1. When the reagent tube hole 11 needs to be cleaned, the reagent tube is taken out, and then the second pipe 23 is moved so that the end of the second pipe 23 away from the annular pipe 24 extends into the bottom end of the reagent tube hole 11. The first pump body 21 is started, and the input end of the first pump body 21 absorbs water and the output end delivers water. Water is injected into the reagent tube hole 11 through the first pipe 22, the annular pipe 24 and the second pipe 23 in sequence to clean the leaked liquid in the reagent tube hole 11. Because the end of the second pipe 23 away from the annular pipe 24 penetrates into the reagent tube hole 11, water is only transported into the reagent tube hole 11 to clean the reagent tube hole 11. At the same time, the reagent tube hole 11 blocks the splashing of water to prevent water from splashing elsewhere and avoiding water from involving elsewhere.

[0032] like Figure 2 、 Figure 4 and Figure 5As shown, preferably, the cleaning assembly 2 also includes a lifting structure; the lifting mechanism is arranged on the outer side of the upper cover of the centrifuge body 1; the lifting structure is connected to the annular tube 24, driving the annular tube 24 to move up and down; the lifting structure controls the position of the annular tube 24 and the second pipe 23 to adjust the insertion of the second pipe 23; preferably, the lifting structure includes a connecting rod 27 and a sleeve 28; one end of the connecting rod 27 is vertically connected to the outer side of the upper cover of the centrifuge body 1; the connecting rod 27 is located at the center of the annular tube 24; one end of the sleeve 28 extends into the connecting rod 27 and is slidably connected to the connecting rod 27, and the other end is connected to the inner side of the annular tube 24 through the rod body, so that the annular tube 24 The ring tube 24 moves up and down with the connecting rod 27; pin holes are horizontally opened on the connecting rod 27 and the sleeve 28, wherein pin holes are opened at the upper and lower ends of the connecting rod 27; the connecting rod 27 and the sleeve 28 are fixed by a pin; when cleaning, the sleeve 28 is moved to the lower end of the connecting rod 27, and then a pin is passed through the pin holes on the connecting rod 27 and the sleeve 28 to fix the sleeve 28 so that the second pipe 23 extends into the inner bottom end of the reagent tube hole 11; when not cleaning, the sleeve 28 is moved to the upper end of the connecting rod 28, and a pin is passed through the pin holes on the connecting rod 27 and the sleeve 28 to fix the sleeve 28 so that the second pipe 23 is away from the reagent tube hole 11.

[0033] Example 2:

[0034] like Figure 4 and Figure 5 As shown, preferably, the end of the first pipe 22 away from the annular tube 24 is provided with two ports, namely a first port and a second port, wherein one end port is connected to the output end of the first pump body 21, that is, the first port is connected to the output end of the first pump body 21; the cleaning component 2 also includes a second pump body 25 and a valve 26; the second pump body 25 is located outside the centrifuge body 1, optionally, the second pump body 25 is arranged on the outer wall of the centrifuge body 1, and the second pump body 25 is also a small pump body; the input end of the second pump body 25 is connected to the end of the first pipe 22 away from the annular tube 24 and not connected to the first pump body 21, that is, the second port of the first pipe 22 is connected to the input end of the second pump body 25, and the output end of the second pump body 25 can be connected to the water injection container connected to the first pump body 21; the valve 26 is respectively arranged on the port where the first pipe 22 is connected to the first pump body 21 and the second pump body 25. In addition, it should be noted that the specific model of the second pump body is not an improvement point of this application and will not be described here.

[0035] Working method:

[0036] When water is supplied to the reagent tube hole 11, the valve 26 on the first port is opened, the valve 26 on the second port is closed, and then the first pump body 21 is started, so that the first pump body 21 supplies water to the reagent tube hole 11. After the water supply is completed, the first pump body 21 is closed. When drainage is required, the valve 26 on the first port is closed, the valve 27 on the second port is opened, and then the second pump body 25 is started. The input end of the second pump body 25 absorbs water, and the water in the reagent tube hole 11 passes through the second pipe 23, the annular pipe 24 and the first pipe 22, and is finally discharged from the output end of the second pump body 25 to achieve drainage of the reagent tube hole 11.

[0037] Preferably, the valve 26 is a solenoid valve; the first pump body 21, the second pump body 25, and the valve 26 are connected to the control system circuit of the centrifuge body 1, and the operation of the first pump body 21, the second pump body 25, and the valve 26 is controlled by the control system of the centrifuge 1. In addition, it should be noted that the first pump body, the second pump body, and the valve are connected to the control system circuit of the centrifuge body 1, which will not be described in detail here.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A centrifuge that is easy to clean, characterized in that: include: Centrifuge body (1); A cleaning assembly (2) comprises a first pump body (21), a first pipe (22), a second pipe (23) and a circular pipe (24); one end of the first pipe (22) is communicated with the output end of the first pump body (21), and the other end thereof is communicated with the circular pipe (24); one end of the second pipe (23) is connected to the circular pipe (24); the second pipes (23) are arranged in parallel and at equal intervals along the circle of the circular pipe (24) corresponding to the reagent tube holes (11) of the centrifuge body (1); a through hole is opened in the upper cover of the centrifuge body (1) corresponding to the second pipe (23); one end of the second pipe (23) away from the circular pipe (24) extends into the reagent tube hole (11) through the through hole; and the second pipe (23) slides along the through hole.

2. The centrifuge that is easy to clean according to claim 1, characterized in that: The first pump body (21), the first pipeline (22) and the annular tube (24) are all located outside the centrifuge body (1); the diameter of the second pipeline (23) is smaller than the diameter of the reagent tube hole (11).

3. The centrifuge that is easy to clean according to claim 1, characterized in that: The first pipe (22) is provided with two ports at one end away from the annular pipe (24), one of which is connected to the output end of the first pump body (21).

4. The centrifuge easy to clean according to claim 3, characterized in that: The cleaning assembly (2) further comprises a second pump body (25) and a valve (26); the second pump body (25) is located outside the centrifuge body (1); an input end of the second pump body (25) is connected to an end of the first pipe (22) away from the annular pipe (24) and not connected to the first pump body (21); and the valve (26) is respectively arranged on the ports where the first pipe (22) is connected to the first pump body (21) and the second pump body (25).

5. The centrifuge easy to clean according to claim 4, characterized in that: The valve (26) is a solenoid valve; the first pump body (21), the second pump body (25) and the valve (26) are connected to the control system circuit of the centrifuge body (1).

6. The easy-to-clean centrifuge according to any one of claims 1 to 5, characterized in that: The reagent tube holes (11) are distributed vertically.

7. The centrifuge easy to clean according to claim 1, characterized in that: The cleaning assembly (2) further comprises a lifting structure; the lifting structure is arranged on the outside of the upper cover of the centrifuge body (1); the lifting structure is connected to the annular tube (24) to drive the annular tube (24) to move up and down.

8. The centrifuge easy to clean according to claim 7, characterized in that: The lifting structure comprises a connecting rod (27) and a sleeve (28); one end of the connecting rod (27) is vertically connected to the outer side of the upper cover of the centrifuge body (1); the connecting rod (27) is located at the center of the annular tube (24); one end of the sleeve (28) extends into the connecting rod (27) and is slidably connected to the connecting rod (27), and the other end is connected to the inner side surface of the annular tube (24) through a rod body; pin holes are horizontally opened on the connecting rod (27) and the sleeve (28); the connecting rod (27) and the sleeve (28) are fixed by a pin.

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