Pressure extension pipe gas detection device

By designing an automated air testing device for pressure extension tubes, and using an air testing frame and clamping components, automatic air blowing testing of pressure extension tubes was achieved, solving the problems of inaccurate results and low efficiency of manual testing, and improving production efficiency and product quality.

CN223985829UActive Publication Date: 2026-03-10ANHUI AOFO MEDICAL EQUIP TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing air blowing test method for pressure extension tubes relies on manual operation, which has problems such as inaccurate test results, low efficiency and high labor intensity.

Method used

A pressure extension tube gas detection device was designed, which uses a gas detection frame, a third pressure extension tube clamping assembly, a longitudinal slide rail, a slider, a slide plate, a clamping plate, a cylinder, and a flow sensor to realize automated gas blowing detection and result judgment.

Benefits of technology

It improved the accuracy of testing and production efficiency, reduced labor intensity, and ensured the consistency of product quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223985829U_ABST
    Figure CN223985829U_ABST
Patent Text Reader

Abstract

The utility model provides a gas detection device for a pressure extension pipe, which comprises a gas detection rack (3), and is characterized in that a third pressure extension pipe clamping assembly (301) is arranged on the gas detection rack (3), and a group of gas nozzle telescopic cylinders (303) distributed corresponding to the third pressure extension pipe clamping assembly (301) are arranged on a cylinder frame (302); and a group of flow sensors (304) correspondingly matched with the air tap telescopic cylinders (303) are also arranged on the air detection rack (3). The device is simple in structure and convenient to use, the automatic blowing detection is matched with the positioning device, the production efficiency is greatly improved, the high-precision flow sensor replaces manual judgment on a result, and the problem that the detection result is low in accuracy is solved.
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Description

Technical Field

[0001] This utility model relates to the field of medical consumable production equipment, specifically a gas detection device for a pressure extension tube. Background Technology

[0002] During the assembly and processing of pressure extension tubes for infusion tubing, a blow-air test is required on the bonded products. This is to prevent poor flow caused by foreign objects clogging the pressure extension tube, residual adhesive, or quality issues with the tube itself. Current testing methods typically involve two workers: one blows air from one end with an air gun while the other checks for airflow. This method is problematic because excessive air gun pressure can damage the product, and it cannot directly detect incomplete blockages within the product, directly impacting product quality and yield. Furthermore, due to high production volumes, prolonged high-intensity testing can lead to fatigue and reduced production efficiency. Therefore, a more efficient, faster, more accurate, and reliable automatic blow-air testing device is urgently needed. Utility Model Content

[0003] The present invention aims to overcome the shortcomings of the prior art by providing a pressure extension tube gas detection device.

[0004] This application provides the following technical solution:

[0005] A pressure extension tube gas detection device includes a gas detection frame, characterized in that: a third pressure extension tube clamping assembly is provided on the gas detection frame, the third pressure extension tube clamping assembly includes a pair of third longitudinal slide rails on the gas detection frame, a third longitudinal slider at each end of each third longitudinal slide rail, a third longitudinal slide plate spanning the two third longitudinal sliders at the same end, a third pressure extension tube clamping plate on each of the two third longitudinal slide plates, at least one third slot on the third pressure extension tube clamping plate so that the two third pressure extension tube clamping plates can be inserted together vertically, a set of correspondingly distributed third V-shaped grooves are also provided on the third pressure extension tube clamping plate, a pair of third longitudinal cylinders corresponding to the corresponding third longitudinal slide plates are also provided on the gas detection frame, a cylinder frame is provided on the gas detection frame, a set of nozzle telescopic cylinders corresponding to the third V-shaped grooves are provided on the cylinder frame, and a set of flow sensors corresponding to the nozzles are also provided on the gas detection frame.

[0006] Based on the above technical solutions, the following further technical solutions are also possible:

[0007] The two third pressure extension tube clamping plates have different thicknesses. The thicker third pressure extension tube clamping plate has two third slots, while the thinner third pressure extension tube clamping plate has only one third slot, so that the thinner third pressure extension tube clamping plate can be inserted into the thicker third pressure extension tube clamping plate.

[0008] The bottom of the third V-shaped groove is arc-shaped.

[0009] A flexible strip is also provided on the third longitudinal slide plate on one side of the third pressure extension tube clamping plate.

[0010] Advantages of the utility model:

[0011] This utility model has a simple structure and is easy to use. It adopts an automatic air blowing detection and positioning device, which greatly improves production efficiency. In addition, the high-precision flow sensor replaces manual judgment of the results, solving the problem of low accuracy of the detection results. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 yes Figure 1 A three-dimensional schematic diagram;

[0014] Figure 3 yes Figure 2 A magnified view along direction A in the image. Detailed Implementation

[0015] To make the view easier, the side panel on one side of the air detector frame in the picture has been removed.

[0016] like Figure 1-3 As shown, a pressure extension tube gas detection device includes a gas detection frame 3, on which a third pressure extension tube clamping assembly 301 is mounted. The third pressure extension tube clamping assembly 301 includes a pair of third longitudinal slide rails 301a mounted on the gas detection frame 3.

[0017] Each of the three longitudinal slide rails 301a has a third longitudinal slider 301b at both ends. Both third longitudinal sliders 301b at the same end are connected by a third longitudinal slide plate 301c. Both third longitudinal slide plates 301c at the same end of the three longitudinal slide rails 301a are provided with a third pressure extension tube clamping plate 301d.

[0018] The upper third pressure extension tube clamping plate 301d is thinner than the lower third pressure extension tube clamping plate 301d. The thicker third pressure extension tube clamping plate 301d has two third slots 301e, while the thinner third pressure extension tube clamping plate 301d has only one third slot 301e, allowing the thinner third pressure extension tube clamping plate 301d to be inserted into the thicker third pressure extension tube clamping plate 301d.

[0019] On the upper and lower third pressure extension tube clamping plates 301d, there is also a set of correspondingly distributed third V-grooves 301g, the bottom of the third V-grooves 301g being arc-shaped. On the air detection frame 3, there is also a pair of third longitudinal cylinders 301h that respectively cooperate with the corresponding third longitudinal slide plates 301c.

[0020] Each of the third longitudinal slide plates 301c is also equipped with a flexible strip 301k of a certain thickness made of silicone. Two flexible strips 301k are distributed vertically, and the lower flexible strip 301k is provided with an arc-shaped groove 301j that corresponds to the seat and the third V-shaped groove 301g.

[0021] A cylinder frame 302 is also installed on the air inspection machine frame 3. A set of nozzle telescopic cylinders 303 are installed on the cylinder frame 302. A nozzle 303a is installed at the output end of the nozzle telescopic cylinder 303, and a third V-shaped groove 301g and an arc groove 310j are distributed accordingly.

[0022] A set of flow sensors 304 is also installed on the air detection frame 3. The air nozzle 303a is connected to the corresponding flow sensor 304 through an air pipe, and the air inlet at one end of the flow sensor 304 is connected to another air pipe connected to the air source. The air pipe is not shown in the diagram for convenience.

[0023] Work process:

[0024] First, an operator places the bonded product into the third V-groove 301g and the arc-shaped groove 301j. The pressure extension tube is located in the third V-groove, and one end of the Luer connector is aligned with the air nozzle 303a. Then, the third pressure extension tube clamping assembly is activated to clamp the product consisting of the pressure extension tube a and the Luer connector b. Next, the air nozzle telescopic cylinder 303 outputs air to push the air nozzle 303a into contact with the Luer connector b. Then, the air source outputs air to start the blowing test. After the blowing is completed, the value displayed on the flow sensor is compared with the flow value of the qualified product to obtain the test result. After obtaining the result, the air nozzle telescopic cylinder retracts, the third pressure extension tube clamping assembly opens, and the worker takes out the tested products for classification. Qualified products flow into the next process, and unqualified products are disposed of as waste.

Claims

1. A pressure extension pipe gas detection device comprising a gas detection rack (3), characterized in that: The third pressure extension pipe clamping assembly (301) is arranged on the gas detection rack (3), and the third pressure extension pipe clamping assembly (301) comprises a pair of third longitudinal sliding rails (301a) arranged on the gas detection rack (3), a third longitudinal sliding block (301b) arranged at each end of each third longitudinal sliding rail (301a), a third longitudinal sliding plate (301c) bridged between the two third longitudinal sliding blocks (301b) at the same end, a third pressure extension pipe clamping plate (301d) arranged on each third longitudinal sliding plate (301c), at least one third slot (301e) arranged on the third pressure extension pipe clamping plate (301d) so that the two third pressure extension pipe clamping plates (301d) can be inserted together, and a set of third V-shaped grooves (301g) arranged in correspondence on the third pressure extension pipe clamping plate (301d). The third pressure extension pipe clamping plate (301d) is arranged on the gas detection rack (3), and a pair of third longitudinal air cylinders (301h) corresponding to the corresponding third longitudinal sliding plates (301c) are arranged on the gas detection rack (3). An air cylinder frame (302) is arranged on the gas detection rack (3), a set of air nozzle telescopic air cylinders (303) corresponding to the third V-shaped grooves (301g) are arranged on the air cylinder frame (302), an air nozzle (303a) is connected to the output end of the air nozzle telescopic air cylinder (303), and a set of flow sensors (304) corresponding to the air nozzle (303a) are arranged on the gas detection rack (3).

2. A pressure extension tube gas detection device as claimed in claim 1, characterized in that: The two third pressure extension pipe clamping plates (301d) are different in thickness, two third slots (301e) are arranged on the thicker third pressure extension pipe clamping plate (301d), and only one third slot (301e) is arranged on the thinner third pressure extension pipe clamping plate (301d), so that the thin third pressure extension pipe clamping plate (301d) can be inserted into the thicker third pressure extension pipe clamping plate (301d).

3. A pressure extension tube gas detection device as claimed in claim 1, wherein: The bottom of the third V-shaped groove (301g) is a circular arc.

4. The pressure extension tube gas detection device of claim 1, wherein: A flexible strip (301k) is further arranged on the third longitudinal sliding plate (301c) on one side of the third pressure extension pipe clamping plate (301d).