CN221037858U

CN221037858U - Liquid-transfering device leakproofness detection device

Info

Publication number: CN221037858U
Application number: CN202322620380.6U
Authority: CN
Inventors: 陈龙; 郭婷婷
Original assignee: Jiangsu Zhongning Measurement Technology Co ltd
Current assignee: Jiangsu Zhongning Measurement Technology Co ltd
Priority date: 2023-09-26
Filing date: 2023-09-26
Publication date: 2024-05-28
Anticipated expiration: 2033-09-26

Abstract

The utility model provides a device for detecting tightness of a liquid dispenser, which belongs to the technical field of detection equipment and comprises a detector, wherein a water tank is arranged in the detector, a first air pipe is communicated with the water tank, a support column is fixedly connected with the detector, the liquid dispenser is placed on the support column, and a clamping assembly is arranged at the lower end of the liquid dispenser. The utility model solves the problems that the existing device for detecting the tightness of the liquid-transfering device can not stably place the liquid-transfering device to be detected in the tightness detecting process, usually requires a worker to hold the liquid-transfering device for detection, is inconvenient to operate, and is easy to influence the tightness detecting efficiency of the liquid-transfering device due to the fact that the device lacks further sealing treatment on the joint of the pipeline for tightness detection, and the practicability is greatly reduced.

Description

Liquid-transfering device leakproofness detection device

Technical Field

The utility model belongs to the technical field of inspection and detection equipment, and particularly relates to a device for detecting tightness of a pipette.

Background

The liquid-transfering device is mainly used for environmental protection, medicine, food hygiene and other scientific research departments, and is used for sampling or adding liquid in biochemical analysis and assay, and is a piston type suction tube, which works by utilizing the air discharge principle, and the displacement of the liquid-transfering device is determined by the distance that the piston moves in the piston sleeve, the sealing performance of the liquid-transfering device refers to the relative vacuum degree of the sealing space formed between the piston of the liquid-transfering device and the liquid to be transferred in the whole liquid-transfering and draining process, and at present, almost all liquid-transfering device manufacturers do not test the sealing performance of the liquid-transfering device before leaving the factory of the product and in the use process of the user, and in fact, the problem of accuracy of the liquid-transfering result caused by the disqualification of the sealing performance is ubiquitous.

Prior art CN217276692U discloses a pipette tightness detection device, including detector shell, operation display device and measurement detection device, operation display device locates on the detector shell, measurement detection device locates inside the detector shell. The device can't be in the leakproofness testing process to treat the pipettor that detects and stably place, generally needs the handheld pipettor of staff to detect, and the operation is inconvenient, and the device lacks further sealing treatment to leakproofness detection pipeline junction, easily leads to influencing the leakproofness detection efficiency of pipettor because of pipeline junction gas leakage, and the practicality greatly reduced.

Disclosure of utility model

The utility model provides a device for detecting tightness of a liquid dispenser, which aims to solve the problems that the existing device for detecting tightness of the liquid dispenser cannot stably place the liquid dispenser to be detected in the tightness detection process, a worker is usually required to hold the liquid dispenser for detection, the operation is inconvenient, the device lacks further sealing treatment on the joint of a pipeline for tightness detection, the tightness detection efficiency of the liquid dispenser is easily affected due to air leakage of the joint of the pipeline, and the practicability is greatly reduced.

The embodiment of the utility model provides a device for detecting tightness of a liquid dispenser, which comprises a detector, wherein a water tank is arranged in the detector, an air pipe I is communicated with the water tank, a support column is fixedly connected with the detector, the liquid dispenser is placed on the support column, and a clamping assembly is arranged at the lower end of the liquid dispenser.

Further, an installation cavity, a placement cavity and a placement groove are reserved in the detector, the placement cavity is located at the left end of the installation cavity, the placement groove is located at the lower end of the placement cavity, a first cavity door is hinged to the outer side of the placement cavity, a second cavity door is hinged to the outer side of the installation cavity, and an observation window is arranged on the second cavity door.

Through adopting above-mentioned technical scheme, the observation window is convenient for observe the numerical value of vacuum table in the installation cavity and whether have the bubble to produce in the clear water in the water pitcher, is convenient for observe, detect the leakproofness of pipettor.

Further, the lower extreme of water pitcher is placed in the standing groove, the upper end block of water pitcher has the cover, be provided with vacuum gauge and trachea two on the cover, trachea one pass the cover, just trachea one with the inner chamber of water pitcher is linked together, trachea two with the inner chamber of water pitcher is linked together, the water pitcher is used for holding the clear water, trachea one is located one end in the water pitcher stretches into in the clear water in the water pitcher, trachea two are located one end in the water pitcher is placed in on the clear water in the water pitcher.

Through adopting above-mentioned technical scheme, with trachea two and external air extraction equipment intercommunication, through observing the vacuum table, detect the vacuum degree in the need adjustment water pitcher according to the leakproofness of pipettor, be linked together water pitcher and pipettor through trachea one, wait for certain time, observe whether the clear water in the water pitcher has the bubble to produce, if there is the bubble to produce, then the leakproofness of pipettor is not enough, if there is not the bubble to produce, then the leakproofness of pipettor is good, realized the detection to the pipettor leakproofness, the simple operation, the practicality is strong, be favorable to improving the detection efficiency of pipettor.

Further, the lower extreme of support column with place the diapire fixed connection in chamber, fixedly connected with connecting block on the support column, the other end fixedly connected with of connecting block holds the supporting shoe.

Through adopting above-mentioned technical scheme, the stable of being convenient for leakproofness detection in-process pipettor is placed, has avoided the handheld pipettor of staff to detect, and is easy and simple to handle, and places the pipettor on the support piece, is favorable to avoiding causing the pollution to the lower extreme of pipettor because of directly placing the pipettor in the workstation, is favorable to improving the accuracy of experimental data, and the practicality is strong.

Further, the pipettor is placed on the support block, a pipette is sleeved at the lower end of the pipettor, and the lower end of the pipette is inserted into the first tracheal tube.

Through adopting above-mentioned technical scheme, before carrying out the leakproofness to different pipettes and detecting, change different pipettes, be favorable to avoiding the lower extreme of pipettes, trachea one to receive cross contamination, be favorable to improving the accuracy of experimental data, easy and simple to handle.

Further, the clamping assembly comprises two clamping blocks sleeved on the outer side of the pipette, the two clamping blocks are sleeved on the outer side of a joint of the pipette and the trachea, bolts are connected to the clamping blocks in a threaded mode, sealing rings are fixedly connected to the inner sides of the clamping blocks, and the two clamping blocks are fixedly connected through the bolts.

Through adopting above-mentioned technical scheme, in order to further improve the leakproofness of pipette and tracheal junction, utilize the bolt to fix two grip blocks in the outside of pipette and tracheal junction, the installation and the dismantlement of grip block of being convenient for are convenient for change the pipette, easy and simple to handle, the sealing washer is favorable to sealing up the junction of pipette and tracheal junction, avoid gas leakage, be favorable to utilizing the water pitcher to detect the leakproofness of pipettor, the accuracy and the reliability of leakproofness detection data have been improved, the quality of pipettor has been improved, the pipetting accuracy of pipettor has been guaranteed, and the practicality is strong.

The beneficial effects of the utility model are as follows:

1. According to the utility model, through the arrangement of the water tank, the air pipe II is communicated with external air extraction equipment, the vacuum degree in the water tank is regulated according to the tightness detection requirement of the liquid dispenser by observing the vacuum meter, the water tank is communicated with the liquid dispenser through the air pipe I, the water tank is left for a certain time, whether air bubbles are generated in clear water in the water tank or not is observed, if the air bubbles are generated, the tightness of the liquid dispenser is insufficient, and if the air bubbles are not generated, the tightness of the liquid dispenser is good, the tightness detection of the liquid dispenser is realized, the operation is convenient, the practicability is strong, and the detection efficiency of the liquid dispenser is improved.

2. The utility model is convenient for the stable placement of the liquid dispenser in the tightness detection process by the arrangement of the supporting column, avoids the detection by a worker holding the liquid dispenser, is simple and convenient to operate, and places the liquid dispenser on the supporting block, thereby being beneficial to avoiding the pollution to the lower end of the liquid dispenser caused by directly placing the liquid dispenser on the workbench, being beneficial to improving the accuracy of experimental data and having strong practicability.

3. According to the utility model, by arranging the pipettes, before the tightness detection of different pipettes is carried out, different pipettes are replaced, so that the cross contamination of the lower end of the pipettes and the first air pipe is avoided, the accuracy of experimental data is improved, and the operation is simple and convenient.

4. According to the utility model, through the arrangement of the clamping assembly, in order to further improve the tightness of the joint of the pipette and the first air pipe, the two clamping blocks are fixed on the outer side of the joint of the pipette and the first air pipe by using the bolts, so that the clamping blocks can be conveniently installed and disassembled, the pipette can be conveniently replaced, the operation is simple and convenient, the sealing ring is beneficial to sealing the joint of the pipette and the first air pipe, air leakage is avoided, the tightness of the liquid dispenser by using the water tank is beneficial to detection, the accuracy and the reliability of tightness detection data are improved, the quality of the liquid dispenser is improved, the liquid-transferring accuracy of the liquid dispenser is ensured, and the practicability is strong.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a front cross-sectional structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the portion a of FIG. 1 according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a clamping assembly according to an embodiment of the present utility model;

Fig. 5 is a schematic structural diagram of a supporting block according to an embodiment of the present utility model.

Reference numerals: 1. a detector; 11. a mounting cavity; 12. a placement cavity; 13. a placement groove; 14. a first cavity door; 15. a cavity door II; 16. an observation window; 2. a water tank; 21. a can lid; 22. a vacuum gauge; 23. a first air pipe; 24. a second air pipe; 3. a support column; 31. a connecting block; 32. a support block; 4. a pipette; 41. a pipette; 5. a clamping assembly; 51. a clamping block; 52. a bolt; 53. and (3) sealing rings.

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.

Referring to fig. 1-2, an embodiment of the utility model provides a device for detecting tightness of a pipette, which comprises a detector 1, wherein an installation cavity 11, a placement cavity 12 and a placement groove 13 are reserved in the detector 1, the placement cavity 12 is positioned at the left end of the installation cavity 11, the placement groove 13 is positioned at the lower end of the placement cavity 12, a first cavity door 14 is hinged to the outer side of the placement cavity 12, a second cavity door 15 is hinged to the outer side of the installation cavity 11, an observation window 16 is arranged on the second cavity door 15, and the observation window 16 is convenient for observing the numerical value of a vacuum meter 22 in the installation cavity 11 and whether bubbles are generated in clear water in a water tank 2, so that tightness of the pipette 4 can be observed and detected conveniently.

Referring to fig. 1 and 3, a water tank 2 is disposed in the detector 1, a first air pipe 23 is communicated with the water tank 2, the lower end of the water tank 2 is disposed in the placement groove 13, a tank cover 21 is clamped at the upper end of the water tank 2, a vacuum gauge 22 and a second air pipe 24 are disposed on the tank cover 21, the first air pipe 23 penetrates through the tank cover 21, the first air pipe 23 is communicated with the inner cavity of the water tank 2, the second air pipe 24 is communicated with the inner cavity of the water tank 2, the water tank 2 is used for containing clean water, one end of the first air pipe 23 is located in the water tank 2 and extends into the clean water in the water tank 2, one end of the second air pipe 24 is located on the clean water in the water tank 2, the second air pipe 24 is communicated with external air pumping equipment, the vacuum gauge 22 is observed, the water tank 2 is communicated with the liquid transfer device 4 according to the need of tightness detection of the liquid transfer device 4, whether bubbles are generated in the water tank 2 is observed for a certain time, if the bubbles are generated, the tightness of the liquid transfer device 4 is insufficient, the liquid transfer device 4 is good in tightness, the detector is realized, the liquid transfer device 4 is convenient to detect, and the operation is convenient.

Referring to fig. 1 and 5, fixedly connected with support column 3 in the detector 1, the lower extreme of support column 3 with place the diapire fixed connection of chamber 12, fixedly connected with connecting block 31 on the support column 3, the other end fixedly connected with bearing piece 32 of connecting block 31, the stable of being convenient for leakproofness detection in-process pipettor 4 is placed, the handheld pipettor 4 of staff detects has been avoided, easy and simple to handle, and place pipettor 4 on bearing piece 32, be favorable to avoiding causing the pollution to the lower extreme of pipettor 4 because of directly placing pipettor 4 in the workstation, be favorable to improving experimental data's accuracy, the practicality is strong.

Referring to fig. 1 and 3, the support column 3 is provided with the pipettes 4, the pipettes 4 are placed on the support block 32, the lower ends of the pipettes 4 are sleeved with the pipettes 41, the lower ends of the pipettes 41 are inserted into the first air pipe 23, and before the tightness detection is carried out on different pipettes 4, different pipettes 41 are replaced, so that the lower ends of the pipettes 4 and the first air pipe 23 are prevented from being subjected to cross contamination, the accuracy of experimental data is improved, and the operation is simple and convenient.

Referring to fig. 1, fig. 3 and fig. 4, the lower extreme of pipettor 4 is provided with clamping assembly 5, clamping assembly 5 is including the cover two grip blocks 51 of establishing in the pipette 41 outside, two grip blocks 51 cover are established in the outside of pipette 41 and tracheal one 23 junction, threaded connection has bolt 52 on the grip block 51, the inboard fixedly connected with sealing washer 53 of grip block 51, two grip blocks 51 pass through bolt 52 fixed connection, in order to further improve the leakproofness of pipette 41 and tracheal one 23 junction, utilize bolt 52 to fix two grip blocks 51 in the outside of pipette 41 and tracheal one 23 junction, the installation and the dismantlement of grip block 51 of being convenient for are convenient for change pipette 41, easy and simple to handle, sealing washer 53 is favorable to sealing pipette 41 and tracheal one 23 junction, avoid gas leakage, be favorable to utilizing water pitcher 2 to detect the leakproofness of pipettor 4, the accuracy and the reliability of leakproofness detection data have been improved, the quality of pipettor 4 has been guaranteed the pipetting accuracy of pipettor 4, and practicality is strong.

The implementation mode specifically comprises the following steps: when the automatic sealing device is used, the pipetter 4 is placed on the support block 32, the pipette 41 is sleeved at the lower end of the pipetter 4, the lower end of the pipette 41 is inserted into the first air pipe 23, the two clamping blocks 51 are fixed on the outer side of the joint of the pipette 41 and the first air pipe 23 by the bolts 52, the joint of the pipette 41 and the first air pipe 23 is sealed by the sealing ring 53, the second air pipe 24 is communicated with external air pumping equipment, the vacuum degree in the water tank 2 is required to be regulated according to the tightness detection of the pipetter 4 through the observation vacuum meter 22, the water tank 2 is communicated with the pipetter 4 through the first air pipe 23, the waiting time is kept for a certain time, whether air bubbles are generated in clear water in the water tank 2 or not is observed, if the air bubbles are generated, the tightness of the pipetter 4 is insufficient, and if no air bubbles are generated, the tightness of the pipetter 4 is good.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pipettor leakproofness detection device, includes detector (1), its characterized in that is provided with water pitcher (2) in detector (1), the intercommunication has trachea one (23) on water pitcher (2), fixedly connected with support column (3) in detector (1), pipettor (4) have been placed on support column (3), the lower extreme of pipettor (4) is provided with clamping assembly (5).

2. The pipette tightness detection device according to claim 1, wherein an installation cavity (11), a placement cavity (12) and a placement groove (13) are reserved in the detector (1), the placement cavity (12) is located at the left end of the installation cavity (11), the placement groove (13) is located at the lower end of the placement cavity (12), a first cavity door (14) is hinged to the outer side of the placement cavity (12), a second cavity door (15) is hinged to the outer side of the installation cavity (11), and an observation window (16) is arranged on the second cavity door (15).

3. The device for detecting the tightness of the liquid transfer device according to claim 2, wherein the lower end of the water tank (2) is placed in the placing groove (13), the upper end of the water tank (2) is clamped with a tank cover (21), a vacuum gauge (22) and a second air pipe (24) are arranged on the tank cover (21), the first air pipe (23) penetrates through the tank cover (21), the first air pipe (23) is communicated with the inner cavity of the water tank (2), the second air pipe (24) is communicated with the inner cavity of the water tank (2), the water tank (2) is used for containing clear water, one end of the first air pipe (23) located in the water tank (2) stretches into the clear water in the water tank (2), and one end of the second air pipe (24) located in the water tank (2) is located above the clear water in the water tank (2).

4. The device for detecting the tightness of the pipettor according to claim 2, wherein the lower end of the supporting column (3) is fixedly connected with the bottom wall of the placing cavity (12), a connecting block (31) is fixedly connected to the supporting column (3), and a supporting block (32) is fixedly connected to the other end of the connecting block (31).

5. A pipette seal detecting device according to claim 4, wherein the pipette (4) is placed on the supporting block (32), a pipette (41) is sleeved at the lower end of the pipette (4), and the lower end of the pipette (41) is inserted into the trachea one (23).

6. The pipette tightness detection device according to claim 5, wherein the clamping assembly (5) comprises two clamping blocks (51) sleeved on the outer side of the pipette (41), the two clamping blocks (51) are sleeved on the outer side of the joint of the pipette (41) and the first air pipe (23), bolts (52) are connected to the clamping blocks (51) in a threaded mode, sealing rings (53) are fixedly connected to the inner sides of the clamping blocks (51), and the two clamping blocks (51) are fixedly connected through the bolts (52).