CN219242943U

CN219242943U - Pipeline connecting device

Info

Publication number: CN219242943U
Application number: CN202320268712.6U
Authority: CN
Inventors: 曹振; 刘凯; 王志刚; 张振方; 刘军; 史杰光; 代志鹏
Original assignee: Haineng Future Technology Co ltd
Current assignee: Haineng Future Technology Co ltd
Priority date: 2023-02-18
Filing date: 2023-02-18
Publication date: 2023-06-23
Anticipated expiration: 2033-02-18

Abstract

The utility model provides a pipeline connecting device, which relates to the technical field of pipeline connection and comprises the following components: a unidirectional mechanism and a connecting body; the connecting main body is provided with a plurality of through holes, the connecting main body is internally provided with the accommodating cavity, the accommodating cavity is arranged to be circular, the situation that dead angles exist in the accommodating cavity and residual reagents exist in the accommodating cavity is avoided, the plurality of through holes are all communicated with the accommodating cavity, the one-way mechanism is arranged on the through holes, the one-way mechanism is connected with the connecting main body, the one-way mechanism provides a one-way channel from the through holes in the pipeline to the accommodating cavity, the situation that the reagents enter other through holes to cause pollution when compressed air is introduced to empty the reagents is prevented, dead angles exist in the communicating position in the prior art, the reagent emptying is not thorough, the measurement is not accurate, or the technical problem that the measurement accuracy is influenced by mutual pollution of various reagents when the pipeline is emptied is solved, the reagent emptying is thorough, meanwhile the reagents cannot pollute each other, and the measurement result is more accurate.

Description

Pipeline connecting device

Technical Field

The utility model relates to the technical field of pipeline connection, in particular to a pipeline connection device.

Background

The cation exchange capacity (Cation Exchange Capacity, CEC) refers to the total amount of various cations adsorbed by the soil colloid, is often used as an index for evaluating the soil fertility preserving capability, is a main source of soil buffering performance, is an important basis for improving soil and reasonably fertilizing, reflects the total amount of negative charges of the soil and characterizes the chemical properties of the soil, and has the advantages of complicated pretreatment process, time and labor consumption and low efficiency. The CEC400 cation exchange pretreatment system instrument can realize automation of the cation exchange pretreatment process according to the national standard method, thereby saving time and improving efficiency.

In the prior art, CEC400 cation exchange capacity pretreatment system apparatus pumps and fills a first reagent into a plurality of reaction vials down through seven passes, respectively. And after the first reagent is filled, introducing compressed air to empty the pipeline to residual the first reagent. After the reaction of the first reagent is finished, pumping and filling the second reagent into a plurality of reaction bottles respectively through seven channels, and after the filling of the second reagent is finished, introducing compressed air to empty the pipeline to leave the second reagent.

However, the dead angle exists in the seven-way of the instrument, the compressed air cannot empty the first reagent in the seven-way after the first reagent is added, so that the first reagent is remained in the seven-way and is contacted with the second reagent to cause cross contamination, measurement is inaccurate, and meanwhile, the first reagent and the second reagent can be possibly blown into the second reagent when the compressed gas is filled into the first reagent and the second reagent for emptying, or the second reagent is blown into the first reagent, so that mutual contamination is caused, and measurement accuracy is affected.

Disclosure of Invention

The utility model aims to provide a pipeline connecting device so as to solve the technical problems that dead angles exist at the communicating positions in the prior art, inaccurate measurement is caused by incomplete reagent evacuation, or the measurement accuracy is affected by mutual pollution of various reagents during the evacuation of a pipeline.

The present utility model provides a pipe connection device, comprising: a unidirectional mechanism and a connecting body;

the connecting body is provided with a plurality of through holes, the connecting body is internally provided with a containing cavity, the containing cavity is arranged into a circular ring shape, a plurality of through holes are communicated with the containing cavity, the one-way mechanism is arranged on the through holes and connected with the connecting body, and the one-way mechanism provides a one-way channel from the inside of a pipeline to the inside of the containing cavity through the through holes.

In an alternative embodiment, the unidirectional mechanism comprises a unidirectional tube and a duckbill;

the one-way pipe is arranged in the through hole, the one-way pipe is connected with the through hole, one end of the one-way pipe extending into the accommodating cavity is provided with a duckbill, and the duckbill is connected with the one-way pipe.

In an alternative embodiment, the duckbill comprises a first compression sheet and a second compression sheet;

the first preforming with the second preforming all sets up the one end of one-way pipe, first preforming with the second preforming is the contained angle and arranges, first preforming with the second preforming all with one-way union coupling, first preforming with the distance of second preforming is followed the direction of one-way passageway is progressively decreased and is arranged, first preforming with the second preforming can be close to each other or keep away from.

In an alternative embodiment, the unidirectional mechanism further comprises a spacing tube;

the limiting tube is arranged at one end, far away from the duckbill, of the one-way tube, the limiting tube is connected with the one-way tube, the outer diameter of the limiting tube is larger than that of the one-way tube, and the limiting tube is in butt joint with the connecting main body.

In an alternative embodiment, the connection body includes a connection tube;

the connecting pipes are provided with a plurality of connecting pipes, each connecting pipe is internally communicated with the accommodating cavity, and the connecting pipes are connected with the pipelines.

In an alternative embodiment, the connecting body further comprises a connecting bin;

the connecting bin is internally provided with the accommodating cavity, a plurality of connecting pipes are arranged at intervals along the circumferential direction of the connecting bin, and the connecting bin is connected with each connecting pipe.

In an alternative embodiment, the connecting bin is provided with a connecting hole, the axis of the connecting hole coincides with the axis of the connecting bin, and the connecting hole is arranged in a penetrating manner along the axis direction of the connecting bin.

In an alternative embodiment, the connecting tube is provided with a stud; the anti-slip protrusions are arranged on the outer wall of the connecting pipe and connected with the connecting pipe, and the anti-slip protrusions are also connected with the pipeline.

In an alternative embodiment, the stud extends in the circumferential direction of the connection tube, the height of the stud increasing in the direction of the unidirectional passage, the stud being arranged in an interference fit with the tube.

In an alternative embodiment, a plurality of said cleats are provided, a plurality of said cleats being arranged in sequence along the direction of said unidirectional passage.

The present utility model provides a pipe connection device, comprising: a unidirectional mechanism and a connecting body; the connecting main body is provided with a plurality of through holes, the connecting main body is internally provided with the accommodating cavity, the accommodating cavity is arranged to be circular, the situation that dead angles exist in the accommodating cavity and residual reagents exist in the accommodating cavity is avoided, the plurality of through holes are all communicated with the accommodating cavity, the one-way mechanism is arranged on the through holes, the one-way mechanism is connected with the connecting main body, the one-way mechanism provides a one-way channel from the through holes in the pipeline to the accommodating cavity, the situation that the reagents enter other through holes to cause pollution when compressed air is introduced to empty the reagents is prevented, dead angles exist in the communicating position in the prior art, the reagent emptying is not thorough, the measurement is not accurate, or the technical problem that the measurement accuracy is influenced by mutual pollution of various reagents when the pipeline is emptied is solved, the reagent emptying is thorough, meanwhile the reagents cannot pollute each other, and the measurement result is more accurate.

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 needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a pipe connection device according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of a pipe connection device according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a unidirectional mechanism of a pipe connection device according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a one-way mechanism of a pipe connection device provided by an embodiment of the present utility model;

FIG. 5 is a side view of a unidirectional mechanism of a pipe connection device according to an embodiment of the present utility model;

fig. 6 is a cross-sectional view of a connection body of a pipe connection device according to an embodiment of the present utility model.

Icon: 100-a one-way mechanism; 110-a unidirectional tube; 120-duckbill; 121-first tabletting; 122-second tabletting; 130-limiting tube; 200-connecting a main body; 210-connecting the pipes; 220-connecting bin; 230-connecting holes; 240-cleats.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

At present, after the first reagent is added, the compressed air can not empty the first reagent in the seven-way valve, so that the first reagent is remained in the seven-way valve to be contacted with the second reagent to cause cross contamination, and measurement is inaccurate.

In view of this, as shown in fig. 1 to 6, the pipe connection device provided in the embodiment of the present utility model includes: a unidirectional mechanism 100 and a connecting body 200; the connecting body 200 is provided with a plurality of through holes, the connecting body 200 is internally provided with a containing cavity, the containing cavity is arranged into a circular ring shape, the through holes are communicated with the containing cavity, the unidirectional mechanism 100 is arranged on the through holes, the unidirectional mechanism 100 is connected with the connecting body 200, and the unidirectional mechanism 100 provides a unidirectional channel from the inside of a pipeline to the inside of the containing cavity through the through holes.

The pipeline connecting device provided by the embodiment of the utility model comprises: a unidirectional mechanism 100 and a connecting body 200; the connecting body 200 is provided with a plurality of through holes, the accommodating cavity is arranged in the connecting body 200, the accommodating cavity is arranged to be circular, reagent residues in dead angles are avoided in the accommodating cavity, the plurality of through holes are communicated with the accommodating cavity, the one-way mechanism 100 is arranged on the through holes, the one-way mechanism 100 is connected with the connecting body 200, the one-way mechanism 100 provides a one-way channel from the through holes to the accommodating cavity in a pipeline, and the reagent is prevented from polluting when entering other through holes for emptying the reagent by compressed air, so that dead angles exist at the communicating positions in the prior art, the reagent is not completely emptied, or the technical problem that the measurement precision is influenced by mutual pollution of various reagents when the pipeline is emptied is solved, the reagent is completely emptied, and meanwhile, the reagent cannot pollute each other, so that the measurement result is more accurate.

Regarding the structure and shape of unidirectional mechanism 100, specific are:

in this embodiment, seven through holes are provided, three unidirectional mechanisms 100 are provided in three through holes close to each other, each unidirectional mechanism 100 comprises a unidirectional tube 110, a duckbill 120 and a limiting tube 130, wherein the unidirectional tube 110 is in a circular tube shape, the unidirectional tube 110 is hollow, the unidirectional tube 110 is arranged in a channel, wherein the outer surface of the unidirectional tube 110 can be tightly matched with the inner wall of the through hole, one end of the unidirectional tube 110 far away from the accommodating cavity is provided with the limiting tube 130, the outer diameter of the limiting tube 130 is larger than the outer diameter of the unidirectional tube 110, one end of the limiting tube 130 far away from the unidirectional tube 110 is provided with a round angle, so that the pipe connection is more convenient, after the unidirectional tube 110 is inserted into the round hole and reaches a preset position, the side wall of the limiting tube 130 is abutted with the end face of the through hole, so that the unidirectional tube 110 is prevented from excessively extending into the through hole to affect the use, and meanwhile, the unidirectional tube 110 can be conveniently taken out, one end of the unidirectional tube 110 extending into the accommodating cavity is provided with a duckbill 120, the duckbill 120 comprises a first pressing piece 121 and a second pressing piece 122, wherein the first pressing piece 121 and the second pressing piece 122 are made of elastic materials, one end of the first pressing piece 121 and one end of the second pressing piece 122 extending into the accommodating cavity are mutually close, the other end of the first pressing piece 121 and the other end of the second pressing piece are mutually far away and are connected with the unidirectional tube 110, a gap is arranged between the first pressing piece 121 and the second pressing piece 122, when reagents or compressed gas are conveyed along the inflow direction of the unidirectional channel, the gap is mutually far away due to the fact that the inner pressure is received, at the moment, the gap is increased, the reagents or the compressed gas can smoothly enter, and in the process that the compressed gas enters the accommodating cavity to empty the reagents, the first pressing piece 121 and the second pressing piece 122 on other single mechanisms are mutually close due to the fact that the outer pressure is received, so that the gap is reduced until the first pressing piece 121 and the second pressing piece 122 are tightly pressed, the compressed air is prevented from carrying the reagent into the unidirectional tube 110 to contaminate other channels.

Wherein, the one end that first preforming 121 and second preforming 122 stretched into the holding chamber can be provided with the spliced pole, and the spliced pole is provided with two and is connected with first preforming 121 and second preforming 122 respectively, and two spliced poles are along the width direction interval arrangement of first preforming 121, are provided with the gap between two spliced poles, and two spliced poles can prevent that first preforming 121 and second preforming 122 from excessively opening and leading to unable closure, make the unidirectional passage inefficacy.

Regarding the structure and shape of the connection body 200, in particular:

the connecting body 200 comprises a connecting pipe 210, a connecting bin 220, a connecting hole 230 and a plurality of anti-slip protrusions 240, wherein the connecting bin 220 is internally annular, an annular accommodating cavity is formed in the connecting bin 220, the connecting hole 230 and the connecting bin 220 are arranged in a superposition mode, the connecting hole 230 is a through hole, the connecting bin 220 is penetrated through the connecting hole 230, the connecting bin 220 can be fixedly connected through bolts, seven connecting pipes 210 are further arranged around the connecting bin 220, the seven connecting pipes 210 are uniformly arranged along the circumferential direction of the connecting bin 220, the connecting pipe 210 and the connecting bin 220 can be integrally formed, all can be made of corrosion-resistant materials, the anti-slip protrusions 240 can be integrally formed with the connecting pipe 210, the anti-slip protrusions 240 are in a ladder shape, the anti-slip protrusions 240 are sequentially connected along the circumferential direction of the connecting pipe 210, each anti-slip protrusion 240 is obliquely arranged along the axial direction of the connecting pipe 210, namely, the protrusion direction of each anti-slip protrusion 240 is obliquely arranged towards the entering direction of a unidirectional channel, and the anti-slip protrusions 240 are consistent on each connecting pipe 210, so that when a pipeline is connected with the connecting pipe 210, the inner wall of the pipeline is in an interference fit with the connecting pipe 210, and the pipeline 210 is prevented from being separated from the connecting the pipeline 210, and the pipeline is firmly connected simultaneously.

In actual use, three connecting pipes 210 with unidirectional mechanisms 100 are generally arranged above the connecting body 200, four connecting pipes 210 without unidirectional mechanisms 100 are arranged below the connecting body, each connecting pipe 210 is connected with one pipeline, the upper three connecting pipes 210 with unidirectional mechanisms 100 are connected with a first reagent through the pipeline, the second connecting pipe 210 is connected with a second reagent through the pipeline, the third connecting pipe 210 is connected with compressed air through the pipeline, the lower four connecting pipes 210 are connected with four samples to be tested through the pipeline, the first reagent firstly enters the accommodating cavity through the pipeline and the unidirectional mechanisms 100, the other four connecting pipes 210 without unidirectional mechanisms 100 are discharged into the four samples to be tested, then the first reagent is stopped being input, compressed air is input into the accommodating cavity, at this time, the compressed air is fixedly opened to connect the first pressing sheet 121 and the second pressing sheet 122 on the connecting pipe 210, so that the compressed air enters the accommodating cavity, the pressure in the accommodating cavity is increased, meanwhile, the outer surfaces of the first pressing sheet 121 and the second pressing sheet 122 corresponding to the first reagent and the second reagent are extruded to be closed, the first reagent in the accommodating cavity is prevented from being taken away by the compressed air, the first reagent is prevented from being remained, the first reagent is more accurately put in, then the compressed air is stopped to be conveyed after the first reagent is emptied, the second reagent is conveyed into four samples to be detected through the four connecting pipes 210, and after a second sample conveying structure is adopted, the compressed air is conveyed into the accommodating cavity again, so that the second reagent is emptied.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A pipe connection device, comprising: a unidirectional mechanism (100) and a connecting body (200);

the connecting body (200) is provided with a plurality of through holes, the connecting body (200) is internally provided with a containing cavity, the containing cavity is arranged into a circular ring shape, a plurality of through holes are communicated with the containing cavity, the one-way mechanism (100) is arranged on the through holes, the one-way mechanism (100) is connected with the connecting body (200), and the one-way mechanism (100) provides a one-way channel from the through holes to the containing cavity in a pipeline.

2. The pipe connection device according to claim 1, characterized in that the unidirectional mechanism (100) comprises a unidirectional pipe (110) and a duckbill (120);

the one-way pipe (110) is arranged in the through hole, the one-way pipe (110) is connected with the through hole, one end of the one-way pipe (110) extending into the accommodating cavity is provided with the duckbill (120), and the duckbill (120) is connected with the one-way pipe (110).

3. The pipe connection device according to claim 2, wherein the duckbill (120) comprises a first compression sheet (121) and a second compression sheet (122);

the utility model discloses a one-way pipe, including single-way pipe (110) and single-way pipe, single-way pipe (121) and single-way pipe (110) are connected, single-way pipe (121) and single-way pipe (122) are all arranged in the distance of single-way pipe, single-way pipe is followed to single-way pipe's direction and is progressively decreased in the distance of single-way pipe (110), single-way pipe (121) and single-way pipe (122) are close to each other or keep away from each other.

4. The pipe connection device according to claim 2, characterized in that the unidirectional mechanism (100) further comprises a stop tube (130);

the utility model discloses a duck bill, including connecting main part (200), connecting main part (200) and spacing pipe (130), spacing pipe (130) set up one end that duckbill (120) was kept away from to one-way pipe (110), spacing pipe (130) with one-way pipe (110) are connected, the external diameter of spacing pipe (130) is greater than the external diameter of one-way pipe (110), spacing pipe (130) with connecting main part (200) butt.

5. The pipe connection device according to claim 1, characterized in that the connection body (200) comprises a connection pipe (210);

the connecting pipes (210) are arranged in a plurality, each connecting pipe (210) is internally communicated with the containing cavity, and the connecting pipe (210) is connected with a pipeline.

6. The pipe connection device according to claim 5, wherein the connection body (200) further comprises a connection bin (220);

the connecting bin (220) is internally provided with the accommodating cavity, a plurality of connecting pipes (210) are arranged at intervals along the circumferential direction of the connecting bin (220), and the connecting bin (220) is connected with each connecting pipe (210).

7. The pipe connection device according to claim 6, wherein the connection chamber (220) is provided with a connection hole (230), an axis of the connection hole (230) coincides with an axis of the connection chamber (220), and the connection hole (230) is provided to penetrate along an axis direction of the connection chamber (220).

8. A pipe connection according to claim 5, characterized in that the connection pipe (210) is provided with a non-slip protrusion (240); the stud (240) is arranged on the outer wall of the connection tube (210), the stud (240) is connected to the connection tube (210), and the stud (240) is also connected to the tube.

9. A pipe connection according to claim 8, wherein the stud (240) extends in the circumferential direction of the connection pipe (210), the height of the stud (240) increasing in the direction of the unidirectional passage, the stud (240) being provided with an interference fit with the pipe.

10. A pipe connection according to claim 8, wherein the stud (240) is provided in a plurality, the plurality of studs (240) being arranged in sequence along the direction of the unidirectional passage.