Tension testing mechanism

Abstract

The utility model provides a tension test mechanism, relates to the test technical field, including: fixed part, first support, support, first drive part and moving part, fixed part and first support are distributed at interval, fixed part is used for clamping the one end of material to be tested, support is I-shaped, one transverse section of support is connected with first support movably, and the other transverse section of support is connected with second support movably. The first driving part is arranged on the first support and located on the side, away from the fixing part, of the first support, and the first driving part is connected with the support. According to the test mode, the detection effect of the tension test can be greatly improved, so that the technical problems existing in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to a tension testing mechanism. Background Art

[0002] At present, intravenous drip generally uses disposable infusion sets to administer drugs to the human body. Disposable infusion sets are a common medical consumables that have been sterilized. Disposable infusion sets need to be tensile tested after production and processing to avoid quality problems during use.

[0003] Existing testing methods generally use manual assisted testing to test the assembled disposable infusion sets. During the testing process, as the testing time increases, the testers are prone to fatigue, which leads to low testing efficiency. In addition, during the testing process, the testers cannot always stay focused, which may lead to detection errors and the quality of the product cannot be guaranteed. Finally, manual testing is inaccurate and the force used by different people cannot be consistent. Utility Model Content

[0004] The purpose of the utility model is to provide a tensile testing mechanism to alleviate the technical problems existing in the related technologies mentioned in the above background technology.

[0005] The utility model provides a tensile testing mechanism, comprising:

[0006] A fixed part, a first support, a bracket, a first driving part and a moving part, the fixed part and the first support are spaced apart, the fixed part is used to clamp one end of the material to be tested, the bracket is in an I-shape, a transverse section of the bracket is movably connected to the first support, the first driving part is arranged on the first support and is located on a side of the first support away from the fixed part, the first driving part is connected to the bracket so that the bracket can approach or move away from the fixed part, the moving part is movably arranged on the vertical section of the bracket, and can reciprocate on the bracket relative to the bracket along the driving direction of the first driving part, the side of the moving part close to the first driving part is elastically connected to the vertical section for providing a rebound force for the moving part, and the side of the moving part away from the first driving part is used to clamp the other end of the material to be tested.

[0007] An infusion set is a common medical consumable. After being sterilized, a channel is established between the vein and the medicine solution, and it is used for intravenous infusion. The infusion set includes an intravenous needle or an injection needle, a needle cap, a catheter, a filter, a flow regulator, a drip pot, a plastic needle and other components. The specific connection methods of the above components are all carried out in a conventional manner. The specific connection methods are mastered by technical personnel and will not be repeated here.

[0008] The fixed part and the first support are arranged at intervals to facilitate the device to perform a tensile test on the infusion set. The fixed part and the first support are both placed on a bearing surface, which is the ground or a platform. The fixed part and the first support can be directly attached to the bearing surface, or can be detachably connected to the bearing surface through other devices, such as bolts, etc. This structural design can enhance the stability of the connection structure when the fixed part and the first support are placed on the bearing surface. The first support 2 is used to support and fix the bracket.

[0009] The first driving part is arranged on the first support and connected to the bracket, so that the first driving part can drive the bracket to move on the first support in a direction away from or close to the fixed part, so as to achieve the effect of the movable part and the fixed part pulling the infusion set to be tested, and by pulling the infusion set to be tested, it is tested whether the infusion set to be tested is a qualified product. If the infusion set to be tested is broken by the movable part and the fixed part, the infusion set to be tested is an unqualified product; if the infusion set to be tested is not broken by the movable part and the fixed part, the infusion set to be tested is a qualified product.

[0010] The fixed part is used to fix the catheter on one side of the drip bucket of the infusion set to be tested, and the movable part is used to clamp one end of the infusion set to be tested. It should be noted that a fixed part can fix one end of an infusion set to be tested, and can also fix one end of multiple infusion sets to be tested at the same time; similarly, a movable part can clamp the other end of an infusion set to be tested, and can also fix the other ends of multiple infusion sets to be tested at the same time. The specific number of tests can be determined according to actual needs, and this application does not limit it.

[0011] The movable part is movably arranged on the vertical section of the bracket. This structural design can facilitate the movable part to cooperate with the fixed part to perform a tensile test on the infusion tube to be tested. Secondly, the elastic connection between the movable part and the vertical section can also facilitate providing a rebound force for the movable part. After the device performs a tensile test on one or more infusion tubes to be tested, the movable part can be reset by the rebound force.

[0012] The horizontal section of the bracket is horizontal plate 1, the vertical section of the bracket is vertical plate, and the other horizontal section of the bracket is horizontal plate 2. The horizontal plate 1 and the vertical plate can be directly connected or indirectly connected through other components. The connection method can be detachable or fixed, such as bolt connection or welding. The vertical plate and the horizontal plate 2 can be directly connected or indirectly connected through other components. The connection method can be detachable or fixed, such as bolt connection or welding.

[0013] The tensile testing mechanism provided by the embodiment of the utility model places one or more infusion sets to be tested on the fixed part and the movable part, so that the first driving part drives the bracket to move on the first support in a direction away from the fixed part, and pulls the infusion set to be tested, and observes whether the infusion set to be tested is broken to judge whether the one or more infusion sets to be tested are qualified products. After the detection is completed, the movable part moves to the initial position of the bracket by the rebound force. This testing method saves the step of manual pulling during manual testing, and can also avoid misdetection caused by different staff members. In addition, when the detection time is long, the staff member is not easy to feel tired, and the problem of reduced test efficiency will not occur. In addition, since the device can perform tensile tests on multiple infusion sets to be tested at the same time, that is, in the same time, one staff member can test multiple infusion sets to be tested at the same time, compared with the existing one staff member can only test one infusion set to be tested at a time, this testing method can also greatly improve the detection effect of the tensile test to solve the technical problems existing in the prior art.

[0014] The purpose of this application and the solution of its technical problems can also be further achieved by adopting the following technical measures.

[0015] Optionally, in the aforementioned tensile testing mechanism, at least one sleeve is provided on the vertical section, the sleeves are arranged at intervals along the extension direction of the vertical section and are located on the same straight line, the moving part includes: at least one guide rod and at least one clip, the guide rods are the same in number as the clips and correspond one-to-one, the sleeves are the same in number as the guide rods and correspond one-to-one, the guide rods are passed through the sleeves and are slidably connected to the sleeves, both ends of the guide rods extend out of the sleeves, the clip is provided at one end of the guide rod away from the first driving part, the clip is used to clamp the other end of the material to be tested, and the other end of the guide rod close to the first driving part is elastically connected to the sleeve.

[0016] Each sleeve passes through the vertical section. If there are multiple sleeves, the multiple sleeves are distributed on the vertical section at intervals along the extension direction of the vertical section and are located on the same straight line. A guide rod is inserted through each sleeve. One end of each guide rod close to the fixed part is connected to the corresponding clip, and the other end of each guide rod away from the fixed part is elastically connected to the corresponding sleeve. The number of clips corresponds to the number of guide rods, and the number of guide rods corresponds to the number of sleeves.

[0017] The sleeve and the vertical section can be connected in a detachable manner or in a fixed connection manner, such as bolt connection or welding. The guide rod and the clip can be connected in a detachable manner or in a fixed connection manner, such as bolt connection or welding. The guide rod and the sleeve are connected in a sliding connection manner, that is, the contact surfaces between the guide rod and the sleeve are smooth.

[0018] The infusion set to be tested is placed on the fixing part and the clamp, so that the first driving part drives the bracket to move on the first support in a direction away from the fixing part, and the infusion set to be tested is continuously tightened. After the shape of the infusion set to be tested is tightened to form a straight line, the first driving part drives the bracket to move on the first support in a direction away from the fixing part, and the distance between the clamp and the fixing part remains unchanged. At this time, the guide rod slides in the corresponding sleeve in the direction of the fixing part. After a period of time, observe whether the infusion set to be tested is broken to determine whether the infusion set to be tested is a qualified product. After the inspection is completed, the guide rod slides in the sleeve and resets by the rebound force.

[0019] It should be noted that only one clip can be set on the guide rod so that the device can only perform a tensile test on one infusion set to be tested. Multiple clips can also be set on the guide rod. The multiple clips are distributed on the vertical section at intervals along the extension direction of the vertical section, and the multiple clips are located on the same straight line. At this time, the device can not only perform a tensile test on one infusion set to be tested, but also perform a tensile test on multiple infusion sets to be tested.

[0020] Optionally, in the aforementioned tensile testing mechanism, an elastic element is sleeved on the guide rod, one end of the elastic element is abutted against the sleeve, and the other end of the elastic element is abutted against the other end of the guide rod, and the number of the elastic elements is the same as the number of the guide rods and corresponds one to one.

[0021] The elastic element is a spring, which can be purchased. The guide rod is adapted to the elastic element and corresponds to each other. The other end of the guide rod is used to abut against the other end of the elastic element, and one end of the elastic element is used to abut against the sleeve.

[0022] When the first driving unit drives the bracket to move on the first support in a direction away from the fixed part, the infusion set to be tested is continuously tightened. After the shape of the infusion set to be tested is tightened to form a straight line, the first driving unit drives the bracket to move on the first support in a direction away from the fixed part. The distance between the clip and the fixed part remains unchanged. At this time, the guide rod slides in the corresponding sleeve in the direction of the fixed part, and the elastic element is squeezed and deformed by the guide rod and the sleeve. After a period of time, observe whether the infusion set to be tested is broken to determine whether the infusion set to be tested is a qualified product. After the inspection is completed, the elastic potential energy generated by the deformation of the elastic element provides a rebound force for the guide rod, so that the guide rod slides in the sleeve and resets.

[0023] Optionally, in the aforementioned tensile testing mechanism, a sensor is provided on another transverse section of the bracket, the sensing end of the sensor is aligned with the other end of the guide rod, and the number of the sensors is the same as the number of the guide rods and corresponds one to one.

[0024] The sensor and the other transverse section of the bracket can be connected in a detachable manner or in a fixed connection manner, such as bolt connection or welding. The sensor is a displacement sensor and can be obtained through purchase.

[0025] If the sensor detects that the other end of the guide rod is offset when the guide rod slides in the sleeve, and the infusion set to be tested is not broken, the sensor does not alarm, that is, the sensor does not feed back a signal to the technician through the control end, and the infusion set to be tested is determined to be a qualified product. The infusion set to be tested after the test can be removed from the fixing part and the clip to carry out the subsequent process flow; when the infusion set to be tested is separated from the clip, the compressed elastic element provides a rebound force for the guide rod to slide and reset the guide rod in the sleeve. For example, when the first driving part drives the bracket to move in a direction away from the fixing part on the first support, the infusion set to be tested is continuously tightened and broken. Even if the bracket continuously moves in a direction away from the fixing part, the other end of the guide rod is always located directly below the sensing end of the sensor, so the sensor does not detect the change in position of the other end of the guide rod. At this time, the sensor feeds back a signal to the technician through the control end, and the infusion set to be tested is determined to be an unqualified product, so that the technician can quickly handle the unqualified product. The control end is an existing electronic device with the function of processing information or signals, such as a single chip microcomputer or a computer, which can be obtained through purchase.

[0026] Optionally, in the aforementioned tensile testing mechanism, a first lifting mechanism is disposed on the first support, the first lifting mechanism is transmission-connected to a transverse section of the bracket, and the first lifting mechanism can drive the bracket to move closer to or away from the first support.

[0027] The first lifting mechanism can be a telescopic cylinder, an electric telescopic rod, or a hydraulic telescopic rod. The first lifting mechanism is used to adjust the height so that when the fixing part and the clip pull the infusion set body, the tightened infusion set can be parallel to the bearing surface, so as to improve the test effect of the device performing a tensile test on the infusion set.

[0028] Optionally, in the aforementioned tensile testing mechanism, the fixing portion is disposed on a second support, and the second support is spaced apart from the first support.

[0029] In order to improve the stability of the first lifting mechanism driving bracket, a guiding mechanism is arranged between the first support and the bracket, and the guiding mechanism includes a sliding rod and a sliding sleeve, wherein the sliding rod is vertically arranged on the first support, and the sliding sleeve is embedded in the bracket. The sliding sleeve is slidably connected to the corresponding sliding rod, and the installation of the sliding rod and the sliding sleeve is connected in a conventional manner. The specific connection is mastered by the technical personnel and will not be repeated here.

[0030] Optionally, in the aforementioned tensile testing mechanism, the fixing part includes: a fixing plate and a second driving part and at least one clamping member arranged on the fixing plate, the fixing plate is connected to the second support, the clamping member is arranged on the side of the fixing plate away from the second support, the number of the clamping members matches the number of the clips and corresponds one to one, the second driving part is connected to the clamping member, and the second driving part is used to drive the clamping member to clamp one end of the material to be tested.

[0031] The second support plays the role of supporting and fixing the fixing part. The second support and the fixing part can be directly connected or indirectly connected through other devices, which is not limited in this application.

[0032] Optionally, in the aforementioned tensile testing mechanism, a second lifting mechanism is provided between the fixing portion and the second support, and the second lifting mechanism can drive the fixing portion to move closer to or away from the second support.

[0033] The fixing plate is used to support one or more clamping members, the number of which matches the number of the clips and corresponds one to one. The clamping member is used to clamp and fix one end of the infusion set so as to cooperate with the clip to pull the infusion set.

[0034] The second driving part is a cylinder, which is used to drive each clamping member to clamp and fix one end of the infusion set. The second driving part can be obtained through purchase.

[0035] By means of the above technical solution, the tensile testing mechanism of the present application has at least the following advantages:

[0036] The tensile testing mechanism provided in the embodiment of the present application places one or more materials to be tested on the fixed part and the movable part, so that the first driving part drives the bracket to move on the first support in a direction away from the fixed part, and pulls the materials to be tested, and observes whether the infusion set to be tested is broken to determine whether the one or more materials to be tested are qualified products. After the test is completed, the movable part moves to the initial position of the bracket through the rebound force. This testing method saves the step of manual pulling during manual testing, and in the case of a long test time, the staff is not easy to feel tired, and there will be no problem of reduced test efficiency. In addition, since the present device can perform tensile tests on multiple materials to be tested at the same time, that is, in the same time, one staff member can test multiple materials to be tested at the same time, compared with the existing one staff member can only test one material to be tested at a time, this testing method can also greatly improve the detection effect of the tensile test to solve the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the related technologies, the drawings required for use in the specific implementation methods or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 A schematic structural diagram of a tensile testing mechanism provided by an embodiment of the utility model from a first perspective;

[0039] Figure 2 A structural schematic diagram of a tensile testing mechanism from a second perspective provided in an embodiment of the utility model.

[0040] icon:

[0041] 1. Fixing part; 11. Fixing plate; 12. Second driving part; 13. Clamping member; 2. First support; 3. Bracket; 4. First driving part; 5. Moving part; 51. Guide rod; 52. Clip; 6. Sleeve; 7. Elastic element; 8. Sensor; 9. First lifting mechanism; 10. Second support; 14. Second lifting mechanism. DETAILED DESCRIPTION

[0042] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Example

[0046] like Figure 1 - Figure 2 As shown, the tensile testing mechanism proposed in the embodiment of the utility model includes: a fixed part 1, a first support 2, a bracket 3, a first driving part 4 and a moving part 5. The fixed part 1 and the first support 2 are arranged at intervals. The fixed part 1 is used to clamp one end of the material to be tested. The bracket 3 is in an I-shape. A transverse section of the bracket 3 is movably connected to the first support 2. The first driving part 4 is arranged on the first support 2 and is located on a side of the first support 2 away from the fixed part 1. The first driving part 4 is connected to the bracket 3 so that the bracket 3 can approach or move away from the fixed part 1. The moving part 5 is movably arranged on the vertical section of the bracket 3 and can reciprocate on the bracket 3 relative to the bracket 3 along the driving direction of the first driving part 4. The side of the moving part 5 close to the first driving part 4 is elastically connected to the vertical section to provide a rebound force for the moving part 5. The side of the moving part 5 away from the first driving part 4 is used to clamp the other end of the material to be tested.

[0047] Specifically, an infusion set is a common medical consumable. After sterilization treatment, a channel is established between the vein and the medicine solution, and it is used for intravenous infusion. The infusion set includes an intravenous needle or an injection needle, a needle cap, a catheter, a filter, a flow regulator, a drip pot, a plastic needle and other components. The specific connection methods of the above components are all carried out in a conventional manner. The specific connection methods are mastered by technical personnel and will not be repeated here.

[0048] The fixed part 1 and the first support 2 are arranged at intervals to facilitate the device to perform a tensile test on the infusion set. The fixed part 1 and the first support 2 are both placed on a bearing surface, which is the ground or a platform. The fixed part 1 and the first support 2 can be directly attached to the bearing surface, or can be detachably connected to the bearing surface through other devices, such as bolts, etc. This structural design can enhance the stability of the connection structure when the fixed part 1 and the first support 2 are placed on the bearing surface. The first support 2 is used to support and fix the bracket 3.

[0049] The first driving part 4 is arranged on the first support 2 and connected to the bracket 3, so that the first driving part 4 can drive the bracket 3 to move on the first support 2 in a direction away from or close to the fixed part 1, so as to achieve the effect of the movable part 5 and the fixed part 1 pulling the infusion set to be tested, and by pulling the infusion set to be tested, it is tested whether the infusion set to be tested is a qualified product. If the infusion set to be tested is broken by the movable part 5 and the fixed part 1, the infusion set to be tested is an unqualified product; if the infusion set to be tested is not broken by the movable part 5 and the fixed part 1, the infusion set to be tested is a qualified product.

[0050] The fixed part 1 is used to fix the catheter on one side of the drip bucket of the infusion set to be tested, and the movable part 5 is used to clamp one end of the infusion set to be tested. It should be noted that one fixed part 1 can fix one end of an infusion set to be tested, and can also fix one end of multiple infusion sets to be tested at the same time; similarly, one movable part 5 can clamp the other end of an infusion set to be tested, and can also fix the other ends of multiple infusion sets to be tested at the same time. The specific number of tests can be determined according to actual needs, and this application does not limit it.

[0051] The movable part 5 is movably arranged on the vertical section of the bracket 3. This structural design allows the movable part 5 to cooperate with the fixed part 1 to perform a tensile test on the infusion tube to be tested. Secondly, the elastic connection between the movable part 5 and the vertical section can also provide a rebound force for the movable part 5. After the device performs a tensile test on one or more infusion tubes to be tested, the movable part 5 can be reset by the rebound force.

[0052] The horizontal section of the bracket 3 is a horizontal plate 1, the vertical section of the bracket 3 is a vertical plate, and the other horizontal section of the bracket 3 is a horizontal plate 2. The horizontal plate 1 and the vertical plate can be directly connected, or indirectly connected through other components, and the connection method can be a detachable connection, or a fixed connection method, such as bolt connection or welding. The vertical plate and the horizontal plate 2 can be directly connected, or indirectly connected through other components, and the connection method can be a detachable connection, or a fixed connection method, such as bolt connection or welding.

[0053] The tension test mechanism provided by the embodiment of the utility model places one or more infusion sets to be tested on the fixed part 1 and the movable part 5, so that the first driving part 4 drives the bracket 3 to move on the first support 2 in the direction away from the fixed part 1, and pulls the infusion set to be tested, and observes whether the infusion set to be tested is broken to judge whether the one or more infusion sets to be tested are qualified products. After the detection is completed, the movable part 5 moves to the initial position of the bracket 3 by the rebound force. This test method saves the step of manual pulling during manual testing, and can also avoid misdetection caused by different staff members. In addition, when the detection time is long, the staff member is not easy to feel tired, and the problem of reduced test efficiency will not occur. In addition, since the device can perform tension tests on multiple infusion sets to be tested at the same time, that is, in the same time, one staff member can test multiple infusion sets to be tested at the same time, compared with the existing one staff member who can only test one infusion set to be tested at a time, this test method can also greatly improve the detection effect of the tension test to solve the technical problems existing in the prior art.

[0054] like Figure 1 - Figure 2 As shown, in a specific implementation, at least one sleeve 6 is provided on the vertical section, and the sleeves 6 are arranged at intervals along the extension direction of the vertical section and are located on the same straight line. The movable portion 5 includes: at least one guide rod 51 and at least one clip 52, the number of the guide rods 51 and the clips 52 are the same, and they correspond one to one, the number of the sleeves 6 and the guide rods 51 are the same, and they correspond one to one, the guide rod 51 is passed through the sleeve 6 and is slidably connected to the sleeve 6, both ends of the guide rod 51 extend out of the sleeve 6, and a clip 52 is provided at one end of the guide rod 51 away from the first driving portion 4, and the clip 52 is used to clamp the other end of the infusion set to be tested, and the other end of the guide rod 51 close to the first driving portion 4 is elastically connected to the sleeve 6.

[0055] Specifically, each sleeve 6 penetrates the vertical section. If there are multiple sleeves 6, the multiple sleeves 6 are distributed on the vertical section at intervals along the extension direction of the vertical section and are located on the same straight line. A guide rod 51 is inserted through each sleeve 6. One end of each guide rod 51 close to the fixed part 1 is connected to the corresponding clip 52, and the other end of each guide rod 51 away from the fixed part is elastically connected to the corresponding sleeve 6. The number of clips 52 corresponds to the number of guide rods 51, and the number of guide rods 51 corresponds to the number of sleeves 6.

[0056] The sleeve 6 and the vertical section can be connected in a detachable manner or in a fixed connection manner, such as bolt connection or welding. The guide rod 51 and the clip 52 can be connected in a detachable manner or in a fixed connection manner, such as bolt connection or welding. The guide rod 51 and the sleeve 6 are connected in a sliding connection manner, that is, the contact surfaces between the guide rod 51 and the sleeve 6 are smooth.

[0057] The infusion set to be tested is placed on the fixing part 1 and the clamp 52, so that the first driving part 4 drives the bracket 3 to move on the first support 2 in a direction away from the fixing part 1. The infusion set to be tested is continuously tightened. After the shape of the infusion set to be tested is tightened to form a straight line, the first driving part 4 drives the bracket 3 to move on the first support 2 in a direction away from the fixing part 1. The distance between the clamp 52 and the fixing part 1 remains unchanged. At this time, the guide rod 51 slides in the corresponding sleeve in the direction of the fixing part 1. After a period of time, observe whether the infusion set to be tested is broken to determine whether the infusion set to be tested is a qualified product. After the inspection is completed, the guide rod 51 slides in the sleeve 6 and resets by the rebound force.

[0058] It should be noted that only one clip 52 can be set on the guide rod 51, so that the device can only perform a tensile test on one infusion pump to be tested. Multiple clips 52 can also be set on the guide rod 51. The multiple clips 52 are distributed on the vertical section at intervals along the extension direction of the vertical section, and the multiple clips 52 are located on the same straight line. At this time, the device can not only perform a tensile test on one infusion pump to be tested, but also perform a tensile test on multiple infusion pumps to be tested.

[0059] like Figure 1 - Figure 2 As shown, in a specific implementation, an elastic element 7 is sleeved on the guide rod 51, one end of the elastic element 7 is abutted against the sleeve 6, and the other end of the elastic element 7 is abutted against the other end of the guide rod 51, and the number of the elastic elements 7 is the same as the number of the guide rods 51, and corresponds one to one.

[0060] Specifically, the elastic element 7 is a spring, which can be purchased. The guide rod 51 is adapted to the elastic element 7 and corresponds to each other. The other end of the guide rod 51 is used to abut against the other end of the elastic element 7, and one end of the elastic element 7 is used to abut against the sleeve 6.

[0061] When the first driving unit 4 drives the bracket 3 to move on the first support 2 in a direction away from the fixed part 1, the infusion set to be tested is continuously tightened. After the shape of the infusion set to be tested is tightened to form a straight line, the first driving unit 4 drives the bracket 3 to move on the first support 2 in a direction away from the fixed part 1. The distance between the clip 52 and the fixed part 1 remains unchanged. At this time, the guide rod 51 slides in the corresponding sleeve in the direction of the fixed part 1, and the elastic element 7 is squeezed and deformed by the guide rod 51 and the sleeve 6. After a period of time, observe whether the infusion set to be tested is broken to determine whether the infusion set to be tested is a qualified product. After the inspection is completed, the elastic potential energy generated by the deformation of the elastic element 7 provides a rebound force for the guide rod 51, so that the guide rod 51 slides in the sleeve 6 and resets.

[0062] like Figure 1 - Figure 2 As shown, in a specific implementation, a sensor 8 is provided on another transverse section of the bracket 3, the sensing end of the sensor 8 is aligned with the other end of the guide rod 51, and the number of the sensors 8 is the same as the number of the guide rods 51, and they correspond one to one.

[0063] Specifically, the sensor 8 and the other transverse section of the bracket 3 can be connected in a detachable manner or in a fixed connection manner, such as bolt connection or welding. The sensor 8 is a displacement sensor 8, which can be obtained through purchase.

[0064] If the guide rod 51 slides in the sleeve 6, the sensor 8 detects that the other end of the guide rod 51 is offset, and the infusion set to be tested is not broken, the sensor 8 does not alarm, that is, the sensor 8 does not feed back a signal to the technician through the control end, and at the same time, the infusion set to be tested is determined to be a qualified product. The infusion set to be tested after the test can be disassembled from the fixing part 1 and the clip 52 for subsequent process flow; when the infusion set to be tested is separated from the clip 52, the compressed elastic element provides a rebound force for the guide rod 51, so that the guide rod 51 slides in the sleeve 6 and Reset, if the first driving part 4 drives the bracket 3 to move on the first support 2 in the direction away from the fixed part 1, the infusion set to be tested is continuously tightened and breaks, even if the bracket 3 continues to move in the direction away from the fixed part 1, the other end of the guide rod 51 is always located directly below the sensing end of the sensor 8, so the sensor 8 does not detect the change in position of the other end of the guide rod 51. At this time, the sensor 8 feeds back a signal to the technician through the control end, and at the same time determines that the infusion set to be tested is a substandard product, so that the technician can quickly handle the substandard product. Among them, the control end is an existing electronic device with the function of processing information or signals, such as a single-chip microcomputer or a computer, which can be obtained through procurement.

[0065] like Figure 1 - Figure 2 As shown, in a specific implementation, a first lifting mechanism 9 is provided on the first support 2 , and the first lifting mechanism 9 is movably connected to a transverse section of the bracket 3 , and the first lifting mechanism 9 can drive the bracket 3 to approach or move away from the first support 2 .

[0066] Specifically, the first lifting mechanism 9 can be a telescopic cylinder, an electric telescopic rod, or a hydraulic telescopic rod. The first lifting mechanism 9 is used to adjust the height so that when the fixing part 1 and the clamp 52 pull the infusion set body, the tightened infusion set can be parallel to the bearing surface, so as to improve the test effect of the device performing a tensile test on the infusion set.

[0067] like Figure 1 - Figure 2 As shown, in a specific implementation, a guiding mechanism is provided between the bracket 3 and the first support 2 .

[0068] Specifically, in order to improve the stability of the first lifting mechanism 9 driving the bracket 3, a guiding mechanism is arranged between the first support 2 and the bracket 3, and the guiding mechanism includes a sliding rod and a sliding sleeve, wherein the sliding rod is vertically arranged on the first support 2, and the sliding sleeve is embedded in the bracket 3. The sliding sleeve is slidably connected to the corresponding sliding rod, and the installation of the sliding rod and the sliding sleeve is connected in a conventional manner. The specific connection is mastered by the technical personnel and will not be repeated here.

[0069] like Figure 1 - Figure 2 As shown, in a specific implementation, the fixing portion 1 is disposed on the second support 10 , and the second support 10 and the first support 2 are arranged at intervals.

[0070] Specifically, the second support 10 plays the role of supporting and fixing the fixing part 1. The second support 10 and the fixing part 1 can be directly connected or indirectly connected through other devices, which is not limited in the present application.

[0071] like Figure 1 - Figure 2 As shown, in a specific implementation, the fixing portion 1 includes: a fixing plate 11 and a second driving portion 12 and at least one clamping member 13 arranged on the fixing plate 11, the fixing plate 11 is connected to the second support 10, and a clamping member 13 is arranged on the side of the fixing plate 11 away from the second support 10, the number of the clamping members 13 matches the number of the clips 52, and corresponds one to one, the second driving portion 12 is connected to the clamping member 13, and the second driving portion 12 is used to drive the clamping member 13 to clamp one end of the infusion set to be tested.

[0072] Specifically, the fixing plate 11 is used to support one or more clamping members 13, and the number of the clamping members 13 is adapted to and corresponds to the number of the clips 52. The clamping member 13 is used to clamp and fix one end of the infusion set so as to cooperate with the clip 52 to pull the infusion set.

[0073] The second driving part 12 is a cylinder, which is used to drive each clamping member 13 to clamp and fix one end of the infusion set. The second driving part 12 can be obtained through purchase.

[0074] like Figure 1 - Figure 2 As shown, in a specific implementation, a second lifting mechanism 14 is disposed between the fixing portion 1 and the second support 10 , and the second lifting mechanism 14 can drive the fixing portion 1 to move closer to or away from the second support 10 .

[0075] Specifically, the second lifting mechanism 14 can be a telescopic cylinder, an electric telescopic rod, or a hydraulic telescopic rod. The second lifting mechanism 14 is used to adjust the height so that when the fixing part 1 and the clamp 52 pull the infusion set to be infused, the tightened infusion set to be infused can be parallel to the bearing surface, so as to improve the test effect of the device performing a tensile test on the infusion set to be infused.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A tensile testing mechanism, characterized in that: include: A fixed portion (1), a first support (2), a bracket (3), a first driving portion (4) and a moving portion (5), wherein the fixed portion (1) and the first support (2) are spaced apart, the fixed portion (1) is used to clamp one end of a material to be tested, the bracket (3) is in an I-shape, a transverse section of the bracket (3) is movably connected to the first support (2), the first driving portion (4) is arranged on the first support (2) and is located on a side of the first support (2) away from the fixed portion (1), and the first driving portion (4) and the bracket are connected to each other. (3) is connected so that the bracket (3) can be close to or away from the fixed part (1), the movable part (5) is movably arranged on the vertical section of the bracket (3), and can reciprocate on the bracket (3) along the driving direction of the first driving part (4) relative to the bracket (3), the side of the movable part (5) close to the first driving part (4) is elastically connected to the vertical section for providing a rebound force for the movable part (5), and the side of the movable part (5) away from the first driving part (4) is used to clamp the other end of the material to be tested.

2. The tensile testing mechanism according to claim 1, characterized in that: At least one sleeve (6) is provided on the vertical section. The sleeves (6) are arranged at intervals along the extension direction of the vertical section and are located on the same straight line. The moving part (5) comprises: at least one guide rod (51) and at least one clip (52). The number of the guide rods (51) and the clips (52) are the same and correspond one to one. The number of the sleeves (6) and the guide rods (51) are the same and correspond one to one. The guide rods (51) are passed through the sleeves (6) and are slidably connected to the sleeves (6). Both ends of the guide rods (51) extend out of the sleeves (6). The clip (52) is provided at one end of the guide rod (51) away from the first driving part (4). The clip (52) is used to clamp the other end of the material to be tested. The other end of the guide rod (51) close to the first driving part (4) is elastically connected to the sleeve (6).

3. The tensile testing mechanism according to claim 2, characterized in that: An elastic element (7) is sleeved on the guide rod (51), one end of the elastic element (7) abuts against the sleeve (6), and the other end of the elastic element (7) abuts against the other end of the guide rod (51), and the number of the elastic elements (7) is the same as the number of the guide rods (51), and they correspond one to one.

4. The tensile testing mechanism according to claim 3, characterized in that: A sensor (8) is arranged on another transverse section of the bracket (3), the sensing end of the sensor (8) is aligned with the other end of the guide rod (51), and the number of the sensors (8) is the same as the number of the guide rods (51), and they correspond one to one.

5. The tensile testing mechanism according to claim 3, characterized in that: A first lifting mechanism (9) is provided on the first support (2), the first lifting mechanism (9) being transmission-connected to a transverse section of the bracket (3), and the first lifting mechanism (9) can drive the bracket (3) to move closer to or away from the first support (2).

6. The tensile testing mechanism according to claim 2, characterized in that: The fixing portion (1) is arranged on a second support (10), and the second support (10) and the first support (2) are arranged at an interval.

7. The tensile testing mechanism according to claim 6, characterized in that: The fixing part (1) comprises: a fixing plate (11), a second driving part (12) and at least one clamping member (13) arranged on the fixing plate (11); the fixing plate (11) is connected to the second support (10); the clamping member (13) is arranged on a side of the fixing plate (11) away from the second support (10); the number of the clamping members (13) matches the number of the clips (52) and corresponds one to one; the second driving part (12) is connected to the clamping member (13); the second driving part (12) is used to drive the clamping member (13) to clamp one end of the material to be tested.

8. The tensile testing mechanism according to claim 6, characterized in that: A second lifting mechanism (14) is provided between the fixing portion (1) and the second support (10), and the second lifting mechanism (14) can drive the fixing portion (1) to move closer to or away from the second support (10).

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