Tensile strength testing device for humidifying oxygen tube

Abstract

The utility model relates to a tensile strength testing device for a humidifying oxygen tube, relates to the technical field of detection equipment, and aims to solve the problem that existing strength testing equipment is complex in operation. The tensile strength testing device comprises a base, a supporting column is vertically arranged on the base, and a first pneumatic clamping jaw and a second pneumatic clamping jaw are arranged on the base and the supporting column respectively; the first pneumatic clamping jaw and the second pneumatic clamping jaw are oppositely arranged, the first pneumatic clamping jaw is fixedly connected to the base, the supporting column is provided with a driving mechanism used for driving the second pneumatic clamping jaw to ascend and descend, and a tensile strength tester used for recording the maximum tensile force borne by a material before the material is broken is arranged above the second pneumatic clamping jaw. The testing device has the advantages of being reasonable in design, compact in structure, easy and visual to operate and low in maintenance cost.

Description

Technical Field

[0001] This application relates to the field of testing equipment technology, and in particular to a tensile strength testing device for humidified oxygen inhalation tubes. Background Technology

[0002] Humidified oxygen tubing, as an important medical device, is widely used in the medical field to provide patients with necessary oxygen supply and humidification. The production process of humidified oxygen tubing involves multiple steps, including raw material preparation, tubing extrusion, molding, welding, inspection, and packaging, to ensure that its quality and performance meet relevant standards and requirements. Tensile strength is one of the key indicators for measuring the quality of humidified oxygen tubing, directly related to whether it can withstand sufficient tensile force during use without breaking or deforming.

[0003] In related technologies, existing tensile strength testing equipment is complex to operate when applied to testing humidified oxygen tubing. It requires professional personnel for operation and maintenance, which increases the cost and difficulty of use and can easily lead to deviations between test results and actual conditions. Therefore, it needs to be improved. Utility Model Content

[0004] To address the problem of complex operation of existing strength testing equipment, this application provides a tensile strength testing device for humidified oxygen inhalation tubes.

[0005] The tensile strength testing device for humidified oxygen inhalation tubes provided in this application adopts the following technical solution:

[0006] A tensile strength testing device for a humidified oxygen inhalation tube includes a base, a support column vertically mounted on the base, a first pneumatic gripper and a second pneumatic gripper respectively mounted on the base and the support column, the first pneumatic gripper and the second pneumatic gripper being arranged opposite to each other, the first pneumatic gripper being fixedly connected to the base, a drive mechanism for driving the second pneumatic gripper to rise and fall on the support column, and a tensile strength tester for recording the maximum tensile force that the material can withstand before fracture is mounted above the second pneumatic gripper.

[0007] Because existing tensile strength testing equipment is complex to operate when used to test humidified oxygen tubing, requiring professional personnel for operation and maintenance, it increases the cost and difficulty of use and can easily lead to deviations between test results and actual conditions; by adopting the above technical solution, including a base, a support column is vertically installed on the base, a first pneumatic gripper is fixed on the base, a second pneumatic gripper is installed on the support column through a drive mechanism, and the tensile strength tester is installed on the second pneumatic gripper;

[0008] When performing a tensile test on the humidified oxygen inhalation tube, one end of the tube is clamped in the first pneumatic gripper. The height of the second pneumatic gripper is adjusted via the drive mechanism, and the second pneumatic gripper is activated to clamp the other end of the tube. Appropriate parameters such as test speed and test force range are set on the tensile strength tester according to the testing requirements, ensuring the record system is functioning correctly to accurately record the maximum tensile force before material breakage. The drive mechanism is then activated, causing the second pneumatic gripper to move upwards, applying tensile force to the tube. The tensile strength tester monitors and records the tensile force value in real time until the tube breaks. After the test, the tensile strength tester displays and records the maximum tensile force before the tube breaks. The operator can read and record this value, then analyze and compare it to evaluate the tensile strength performance of the humidified oxygen inhalation tube.

[0009] With its base, first pneumatic gripper, second pneumatic gripper, and tensile strength tester, this testing device is rationally designed, compact in structure, simple and intuitive to operate, and has low maintenance costs. Operators do not need complex operating skills or professional knowledge to easily complete the tensile test of the humidified oxygen inhalation tube. The tensile strength tester can monitor and record the tensile force value in real time until the humidified oxygen inhalation tube breaks, ensuring the accuracy of the test results and helping to truly reflect the tensile strength performance of the material. At the same time, the high degree of automation improves the testing efficiency, reduces the error caused by human operation, and can flexibly adjust parameters such as testing speed and testing force range according to different testing needs, making it suitable for tensile testing of humidified oxygen inhalation tubes of different specifications and materials.

[0010] Optionally, a fixing plate is provided at the bottom of the first pneumatic gripper, the fixing plate is attached to the surface of the base, and fixing bolts for fixing to the base are provided on the fixing plate.

[0011] By adopting the above technical solution, the first pneumatic gripper is installed on the base by a fixing plate and fixed by fixing bolts. The fixing plate and fixing bolts ensure that the connection between the first pneumatic gripper and the base is stable and reliable. Even if the humidified oxygen inhalation tube is subjected to a large tension, the first pneumatic gripper can remain stable and will not affect the accuracy of the test results due to shaking or loosening. It is also easy to install and disassemble, and convenient for maintenance.

[0012] Optionally, the base is provided with a safety chain for protection, one end of which is connected to the fixing plate of the first pneumatic gripper, and the other end of which is connected to the second pneumatic gripper.

[0013] By adopting the above technical solution, a safety chain is installed between the first pneumatic gripper and the second pneumatic gripper. The safety chain acts as an additional safety guarantee, preventing accidents caused by equipment malfunction or operational errors during testing, protecting the personal safety of operators, and further enhancing the overall stability of the device. It ensures that the relative position between the first and second pneumatic grippers remains stable during testing, avoiding any impact on the accuracy of test results due to shaking or vibration.

[0014] Optionally, an L-shaped connecting plate is provided at one end of the safety chain near the first pneumatic gripper, and the two ends of the L-shaped connecting plate are respectively connected to the fixed plate and the end of the safety chain.

[0015] By adopting the above technical solution, the safety chain is installed on the fixed plate through the L-shaped connecting plate; the L-shaped connecting plate makes the connection between the safety chain and the fixed plate more stable, and the safety chain can better withstand the force generated during the tensile test, ensuring that the connection will not loosen or break due to excessive force.

[0016] Optionally, the driving mechanism includes a hydraulic cylinder and a transmission slider. The hydraulic cylinder is arranged inside the support column and faces the height direction of the support column. The transmission slider is connected to the output end of the hydraulic cylinder, and the second pneumatic gripper is connected to the transmission slider.

[0017] By adopting the above technical solution, the driving mechanism includes a hydraulic cylinder and a transmission slider. When the hydraulic cylinder is activated, the transmission slider begins to drive the second pneumatic gripper to move upward (or downward, depending on the specific design). As the second pneumatic gripper moves, the humidified oxygen inhalation tube is subjected to tensile force. Through the setting of the driving mechanism, it is possible to ensure that the position and speed of the transmission slider are precisely controlled during the movement process, which helps to achieve precise control of the force on the humidified oxygen inhalation tube in the tensile test, thereby improving the accuracy and reliability of the test results.

[0018] Optionally, the support column has a sliding groove inside, and the transmission slider has a sliding part, which is slidably connected in the sliding groove.

[0019] By adopting the above technical solution, the sliding groove is opened inside the support column, and the transmission slider is slidably connected in the sliding groove through the sliding part. Through the setting of the sliding groove and the sliding part, the sliding groove provides a clear movement path for the transmission slider, so that the transmission slider can remain stable during movement, reducing test errors caused by shaking or vibration, and improving the accuracy and reliability of the test.

[0020] Optionally, the top of the support column is provided with a stopper for limiting the stroke of the hydraulic cylinder, the stopper being directly above the second pneumatic gripper.

[0021] By adopting the above technical solution, the stopper is installed on the top of the support column; by setting the stopper, the main function of the stopper is to limit the stroke of the hydraulic cylinder, ensure that the transmission slider and the second pneumatic gripper move within a predetermined range, which helps to prevent equipment damage or test errors caused by excessive stroke, and protect the equipment from damage.

[0022] Optionally, the surface of the support column is provided with scale lines for observing the stretching length, and the scale lines are arranged along the height direction of the support column.

[0023] By adopting the above technical solution, the scale lines are integrally formed on the surface of the support column; by setting the scale lines, the scale lines are directly engraved on the surface of the support column, which allows the operator to intuitively observe the changes in the stretching length, which helps the operator to quickly and accurately judge the stretching state of the humidified oxygen inhalation tube, so as to make timely adjustments or record data.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] With its base, first pneumatic gripper, second pneumatic gripper, and tensile strength tester, this testing device is rationally designed, compact in structure, simple and intuitive to operate, and has low maintenance costs. Operators do not need complex operating skills or professional knowledge to easily complete the tensile test of the humidified oxygen inhalation tube. The tensile strength tester can monitor and record the tensile force value in real time until the humidified oxygen inhalation tube breaks, ensuring the accuracy of the test results and helping to truly reflect the tensile strength performance of the material. At the same time, the high degree of automation improves the testing efficiency, reduces the error caused by human operation, and can flexibly adjust parameters such as testing speed and testing force range according to different testing needs, making it suitable for tensile testing of humidified oxygen inhalation tubes of different specifications and materials.

[0026] By setting up a safety chain, the safety chain serves as an additional safety guarantee, preventing accidents caused by equipment failure or operational errors during testing, protecting the personal safety of operators, and further enhancing the overall stability of the device. It ensures that the relative position between the first and second pneumatic grippers remains stable during testing, avoiding the impact of shaking or vibration on the accuracy of test results.

[0027] By setting up the stopper, the main function of the stopper is to limit the stroke of the hydraulic cylinder, ensuring that the transmission slider and the second pneumatic gripper move within a predetermined range. This helps to prevent equipment damage or testing errors caused by excessive stroke, and protects the equipment from damage. Attached Figure Description

[0028] Figure 1This is a schematic diagram of the tensile strength testing device for a humidified oxygen inhalation tube according to an embodiment of this application.

[0029] Figure 2 This is a cross-sectional view used in the embodiments of this application to illustrate the connection relationship between the sliding block and the support column.

[0030] Figure 3 This is a cross-sectional view used to illustrate the structure of the drive mechanism in the embodiments of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Base; 2. Support column; 3. First pneumatic gripper; 4. Second pneumatic gripper; 5. Drive mechanism; 51. Hydraulic cylinder; 52. Transmission slider; 521. Sliding part; 6. Tensile strength tester; 7. Fixing plate; 71. Fixing bolt; 8. Safety chain; 81. L-shaped connecting plate; 9. Sliding groove; 10. Stopper; 11. Scale line. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0033] This application discloses a tensile strength testing device for a humidified oxygen inhalation tube. (Refer to...) Figure 1 The tensile strength testing device for humidified oxygen inhalation tubes includes a base 1, on which a support column 2 is vertically installed. In this embodiment, the support column 2 is fixed to the surface of the base 1 by bolts.

[0034] Reference Figure 1 A first pneumatic gripper 3 and a second pneumatic gripper 4 are respectively installed on the base 1 and the support column 2. In this embodiment, the first pneumatic gripper 3 and the second pneumatic gripper 4 are arranged opposite to each other. The first pneumatic gripper 3 and the second pneumatic gripper 4 fix the two ends of the humidification oxygen inhalation tube respectively. A fixing plate 7 is installed at the bottom of the first pneumatic gripper 3. The fixing plate 7 is attached to the surface of the base 1. Fixing bolts 71 for fixing to the base 1 are installed on the fixing plate 7. There are multiple sets of fixing bolts 71. This ensures that the connection between the first pneumatic gripper 3 and the base 1 is stable and reliable. Even if the humidification oxygen inhalation tube is subjected to a large tension, the first pneumatic gripper 3 can remain stable and will not affect the accuracy of the test results due to shaking or loosening. It is also easy to install and disassemble, and convenient for maintenance.

[0035] Reference Figure 1 and Figure 2A drive mechanism 5 is installed inside the support column 2. The drive mechanism 5 is used to drive the second pneumatic gripper 4 to achieve lifting and lowering. The drive mechanism 5 includes a hydraulic cylinder 51 and a transmission slider 52. The hydraulic cylinder 51 is located at the bottom of the support column 2 and is arranged in the height direction of the support column 2. The transmission slider 52 is installed on the output end of the hydraulic cylinder 51. The second pneumatic gripper 4 is connected to the transmission slider 52. In this embodiment, a strip groove is opened through one end of the support column 2 near the second pneumatic gripper 4. The strip groove is connected to the inside of the support column 2 and is opened along the height direction of the support column 2 to realize the installation of the transmission slider 52 and the second gripper. This can ensure that the position and speed of the transmission slider 52 are precisely controlled during the movement process, which helps to achieve precise control of the force on the humidified oxygen inhalation tube in the tensile test, thereby improving the accuracy and reliability of the test results.

[0036] Reference Figure 1 and Figure 2 The support column 2 has a sliding groove 9 inside, and the opening direction of the sliding groove 9 is consistent with the extension direction of the hydraulic cylinder 51. The transmission slider 52 has an integrally formed sliding part 521, which is slidably connected in the sliding groove 9. In this embodiment, there are two sliding parts 521, which are symmetrically installed on both sides of the transmission slider 52. At the same time, there are two sliding grooves 9 inside the support column 2. The sliding groove 9 provides a clear movement path for the transmission slider 52, so that the transmission slider 52 can remain stable during movement, reducing the test error caused by shaking or vibration, and improving the accuracy and reliability of the test.

[0037] Reference Figure 1 A stopper 10 is fixedly installed on the top of the support column 2. In this embodiment, the stopper 10 is directly above the second pneumatic gripper 4. The main function of the stopper 10 is to limit the stroke of the hydraulic cylinder 51, ensure that the transmission slider 52 and the second pneumatic gripper 4 move within a predetermined range, and help prevent equipment damage or test errors caused by excessive stroke, thus protecting the equipment from damage.

[0038] Reference Figure 1 A tensile strength tester 6 is installed above the second pneumatic gripper 4. The tensile strength tester 6 can monitor and record the tensile force value in real time until the humidified oxygen tube breaks, ensuring the accuracy of the test results and helping to truly reflect the tensile strength performance of the material.

[0039] Reference Figure 1 Meanwhile, the support column 2 has an integrally formed scale line 11 on its surface. The scale line 11 is arranged along the height direction of the support column 2 and is directly engraved on the surface of the support column 2. This allows the operator to intuitively observe the change in the stretching length, which helps the operator to quickly and accurately judge the stretching state of the humidified oxygen inhalation tube and make timely adjustments or record data.

[0040] Reference Figure 1 and Figure 3 A safety chain 8 is installed between the first pneumatic gripper 3 and the second pneumatic gripper 4. One end of the safety chain 8 is installed on the second pneumatic gripper 4, and the other end of the safety chain 8 is installed with an L-shaped connecting plate 81. The L-shaped connecting plate 81 is fixed to the fixing plate 7 by bolts. The safety chain 8 serves as an additional safety guarantee, preventing accidents caused by equipment failure or operational errors during the test, protecting the personal safety of the operator, and further enhancing the overall stability of the device. It ensures that the relative position between the first pneumatic gripper 3 and the second pneumatic gripper 4 remains stable during the test, avoiding the impact of shaking or vibration on the accuracy of the test results.

[0041] The implementation principle of the tensile strength testing device for a humidified oxygen inhalation tube in this application embodiment is as follows: When performing a tensile test on the humidified oxygen inhalation tube, one end of the tube is clamped in the first pneumatic gripper 3. The height of the second pneumatic gripper 4 is adjusted by the drive mechanism 5, and the second pneumatic gripper 4 is activated to clamp the other end of the tube. According to the testing requirements, appropriate parameters such as testing speed and testing force range are set on the tensile strength tester 6 to ensure that the recording system of the tensile strength tester 6 is in normal working condition so as to accurately record the maximum tensile force before the material breaks. The drive mechanism 5 is activated to make the second pneumatic gripper 4 start to move upward, thereby applying a tensile force to the tube. The tensile strength tester 6 will monitor and record the tensile force value in real time until the tube breaks. After the test, the tensile strength tester 6 will display and record the maximum tensile force value before the tube breaks. The operator can read and record this value, and then analyze and compare it to evaluate the tensile strength performance of the tube.

[0042] With its base 1, first pneumatic gripper 3, second pneumatic gripper 4, and tensile strength tester 6, this testing device is rationally designed, compact in structure, simple and intuitive to operate, and has low maintenance costs. Operators do not need complex operating skills or professional knowledge to easily complete the tensile test of the humidified oxygen inhalation tube. The tensile strength tester 6 can monitor and record the tensile force value in real time until the humidified oxygen inhalation tube breaks, ensuring the accuracy of the test results and helping to truly reflect the tensile strength performance of the material. At the same time, it has a high degree of automation, which improves the testing efficiency and reduces the error caused by human operation. In addition, the parameters such as the test speed and test force range can be flexibly adjusted according to different testing needs, making it suitable for tensile testing of humidified oxygen inhalation tubes of different specifications and materials.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tensile strength testing device for a humidified oxygen inhalation tube, characterized in that: The device includes a base, on which a support column is vertically mounted. A first pneumatic gripper and a second pneumatic gripper are respectively mounted on the base and the support column. The first pneumatic gripper and the second pneumatic gripper are arranged opposite to each other. The first pneumatic gripper is fixedly connected to the base. A drive mechanism for driving the second pneumatic gripper to rise and fall is mounted on the support column. A tensile strength tester for recording the maximum tensile force that the material can withstand before breaking is mounted above the second pneumatic gripper.

2. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 1, characterized in that: The first pneumatic gripper has a fixing plate at its bottom, which is attached to the surface of the base and has fixing bolts for fixing to the base.

3. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 2, characterized in that: The base is equipped with a safety chain for protection. One end of the safety chain is connected to the fixing plate of the first pneumatic gripper, and the other end of the safety chain is connected to the second pneumatic gripper.

4. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 3, characterized in that: An L-shaped connecting plate is provided at one end of the safety chain near the first pneumatic gripper, and the two ends of the L-shaped connecting plate are respectively connected to the fixed plate and the end of the safety chain.

5. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 1, characterized in that: The driving mechanism includes a hydraulic cylinder and a transmission slider. The hydraulic cylinder is arranged inside the support column and faces the height direction of the support column. The transmission slider is connected to the output end of the hydraulic cylinder, and the second pneumatic gripper is connected to the transmission slider.

6. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 5, characterized in that: The support column has a sliding groove inside, and the transmission slider has a sliding part, which is slidably connected in the sliding groove.

7. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 5, characterized in that: The top of the support column is provided with a stopper for limiting the stroke of the hydraulic cylinder, and the stopper is directly above the second pneumatic gripper.

8. The tensile strength testing device for a humidified oxygen inhalation tube according to claim 1, characterized in that: The surface of the support column is provided with scale lines for observing the stretching length, and the scale lines are arranged along the height direction of the support column.

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