Guide wire fracture test tool

Abstract

The utility model discloses a guide wire fracture test tool, and belongs to the technical field of guide wire testing. The device comprises a base, one side of which is rotatably provided with a handle; the rotating shaft is rotationally installed on the base, the rotating shaft is in transmission connection with the handle, the rotating shaft comprises a plurality of winding shafts which are different in diameter and are coaxially arranged, and through holes are formed in the winding shafts. The rotating shaft directly comprises a plurality of winding shafts with different diameters, so that when different guide wires are replaced or fracture tests with different bending degrees are carried out on the same guide wire, the guide wires are directly wound on the winding shafts with different diameters, and the rotating shaft or a tool does not need to be replaced; therefore, fracture tests of different bending degrees can be carried out on the guide wire very conveniently, and the efficiency of the fracture tests of the guide wire is improved.

Description

Technical Field

[0001] The utility model relates to a guide wire testing technology, in particular to a guide wire rupture test tool. Background Art

[0002] When testing the rupture resistance of a guidewire, it is necessary to wind the guidewire around a shaft of a certain diameter in a certain number of turns, and then observe whether the guidewire breaks after bending. In order to facilitate the winding of the guidewire, a tool is provided, including a base, on which a rotating shaft is rotatably connected, a through hole is provided on the rotating shaft, and a manual handle is installed on one side of the rotating shaft. After inserting one end of the guidewire into the through hole, the manual handle is rotated to wind the guidewire around the rotating shaft, and the guidewire is subjected to a rupture test. However, different guidewires are subjected to rupture tests on rotating shafts of different diameters according to different needs. Therefore, different tooling needs to be replaced, which is more troublesome. Utility Model Content

[0003] The utility model aims to provide a guidewire rupture test tool to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solution adopted to solve the above technical problems is as follows: a guide wire rupture test tool, comprising: a base, on one side of which is rotatably mounted a handle; a rotating shaft, rotatably mounted on the base, the rotating shaft is transmission-connected to the handle, the rotating shaft comprises a plurality of winding shafts with different diameters and coaxially arranged, and the winding shafts are provided with through holes.

[0005] This technical solution has at least the following beneficial effects: the rotating shaft directly includes a plurality of winding shafts of different diameters. When replacing different guide wires or performing rupture tests of different bending degrees on the same guide wire, the guide wire is directly wound on the winding shafts of different diameters without replacing the rotating shaft or the tooling. Thus, the guide wire can be very conveniently subjected to rupture tests of different bending degrees, thereby improving the efficiency of the guide wire rupture test.

[0006] As a further improvement of the above technical solution, support seats are installed on both sides of the base, and rotating blocks are rotatably installed on the opposite sides of the two support seats. The two ends of the winding shaft are respectively provided with matching plug-in blocks and slots, so that two adjacent winding shafts are plugged in, and the two rotating blocks are respectively provided with the plug-in blocks and the slots at one end close to each other. The two ends of the multiple winding shafts after plugging are respectively plugged in the corresponding rotating blocks, and the handle is connected to one of the rotating blocks in a transmission manner. Different winding shafts are connected by plugging, which can be easily assembled according to the rupture test of different guide wires, which is convenient for users' customization needs. At the same time, different winding shafts can be reassembled. According to the requirements for the bending degree of different guide wires during the rupture test at different stages, the commonly used winding shafts are distributed in the middle position, thereby improving the efficiency of the guide wire rupture test.

[0007] As a further improvement of the above technical solution, the insert block and the bottom wall of the slot are respectively provided with mutually adsorbed magnetic parts. The mutual adsorption of the magnetic parts between two adjacent winding shafts and between the winding shaft and the rotating block is more stable, thereby ensuring the integrity of the rotating shaft.

[0008] As a further improvement of the above technical solution, the support seat is fixed with a convex block and installed with a bolt, and the convex block is detachably installed on the base through the bolt. By removing and installing the bolt, the support seat and the rotating shaft can be easily removed and installed.

[0009] As a further improvement of the above technical solution, a rebound component is installed between the handle and the base, and after the handle is rotated, the rebound component can restore the handle to its initial position relative to the base. After the guide wire is inserted into the through hole, the guide wire is wound on the winding shaft by rotating the handle, and after observing whether the guide wire is broken, the handle is released, and the handle can be reversely rotated to the initial position by the rebound component, so that the guide wire can be easily removed from the winding shaft for the next guide wire rupture test, thereby improving the efficiency of batch guide wire rupture tests, and at the same time, it can also reduce the need for operators to reverse the handle and reduce the operator's operating burden.

[0010] As a further improvement of the above technical solution, the rebound assembly includes a scroll spring, one end of which is connected to the base and the other end is connected to the handle. When the handle is turned, the scroll spring stores energy, and after the handle is released, the scroll spring returns to its original state and can provide a torque for the handle to rotate in the opposite direction, so that the handle can quickly return to its original position.

[0011] As a further improvement of the above technical solution, the handle is provided with a slider that slides along the direction of the rotation radius, and the base is provided with a vortex groove for the slider to be embedded and slide, and the center of the vortex groove corresponds to the rotation center of the handle. When the handle is in the initial position, the slider is at one end of the vortex groove. When the handle rotates relative to the base, the slider slides in the vortex groove, and the slider is restricted by the vortex groove, so that the slider slides relative to the handle at the same time. When the handle returns to the initial position under the action of the rebound component, the slider just hits the end position of the vortex groove, so that the handle can be restricted so that the handle can just return to the initial position to facilitate the removal of the guide wire.

[0012] As a further improvement of the above technical solution, the handle is provided with a slide groove for the slider to slide, and the rebound component includes a coil spring, one end of the coil spring abuts against the slider, and the other end abuts against the side wall of one end of the slide groove. When the handle is turned to wind the guide wire, under the restriction of the vortex groove, the slider slides in the slide groove and presses the coil spring, and when the handle is released to release the guide wire, under the elastic action of the coil spring, the slider is driven to slide in the opposite direction in the slide groove, and under the restriction of the vortex groove, the handle is rotated in the opposite direction relative to the base to drive the handle to return to the initial position.

[0013] As a further improvement of the above technical solution, a guide rod through which the slider is installed is installed in the slide groove, the length direction of the guide rod is parallel to the length direction of the slide groove, and the coil spring is sleeved outside the guide rod. Under the guidance of the guide rod, the slider slides more steadily in the slide groove and is not easy to get loose. At the same time, the guide rod can also limit the expansion and contraction direction of the coil spring to ensure the elastic effect of the coil spring on the slider.

[0014] As a further improvement of the above technical solution, a roller is rotatably mounted on one side of the slider, and the roller is slidably arranged in the vortex groove. The roller can slide relative to the slider, so that the roller can reduce the friction between the roller and the side wall of the vortex groove by its own rolling during the sliding process in the vortex groove, thereby improving the smoothness of the sliding of the roller in the vortex groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of Embodiment 1 of the present utility model;

[0018] Figure 3This is a schematic diagram of the exploded structure of the rebound component in the second embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the exploded structure of the rebound component in the third embodiment of the present utility model.

[0020] Base 10, support seat 11, protrusion 12, vertical plate 13, handle 20, winding shaft 30, through hole 31, rotating block 40, insert block 41, slot 42, magnetic element 43, scroll spring 50, slider 60, scroll groove 61, slide groove 62, spiral spring 70, guide rod 71, roller 80. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0023] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0025] Embodiment 1:

[0026] Reference Figure 1-2A guidewire rupture test tool comprises a base 10, which is a flat plate. A support seat 11 is installed on both sides of the base 10. The bottom of both sides of the support seat 11 is integrally formed with a protrusion 12. The top of the protrusion 12 is provided with a countersunk hole and a bolt is passed through. The bolt is inserted into the countersunk hole and screwed into the base 10, so that the support seat 11 can be detachably installed on the base 10. A rotating shaft is rotatably installed between the two support seats 11. The rotating shaft includes a plurality of winding shafts 30 with different diameters. Each winding shaft 30 is provided with a through hole 31 whose axis is perpendicular to the axis of the winding shaft 30. An insert block 41 is integrally formed at one end of the winding shaft 30, and a slot 42 is provided at the other end. The insert block 41 and the slot 42 can be matched and embedded. When multiple winding shafts 30 are plugged into each other through the insert block 41 and the slot 42, each winding shaft 30 is coaxially arranged side by side. The cross-sections of the insert block 41 and the slot 42 are square, so that rotation can be transmitted between two adjacent winding shafts 30. In other embodiments, the cross-sections of the insert block 41 and the slot 42 may also be configured to be triangular, pentagonal or other non-circular shapes.

[0027] Bearings are installed on the opposite sides of the two support seats 11, and a rotating block 40 is installed inside the bearing, so that the rotating block 40 can be smoothly rotated and set on the support seat 11. One of the rotating blocks 40 is integrally formed with an insert block on the side close to the middle of the base 10, and the other rotating block 40 is provided with a slot 42 on the side close to the middle of the base 10. Therefore, the two ends of the multiple winding shafts 30 can be respectively plugged with the rotating blocks 40 on the corresponding side after being plugged into each other, and the multiple winding shafts 30 are coaxially rotatably installed on the support seat 11. A handle 20 is rotatably installed on the side of one of the support seats 11 away from the other side of the support seat 11, and the rotating block 40 on this side is inserted into the middle of the handle 20 and fixed by fasteners such as screws, so that the rotating block 40 is connected to the handle 20 in a transmission manner. The handle 20 is a wheel-type rotating handle, and the guide wire is inserted into the through hole 31 of the corresponding winding shaft 30. By rotating the handle 20, it is convenient to drive the rotating block 40 and the winding shaft 30 to rotate, and the guide wire is wound on the winding shaft 30, and a rupture test is performed on the guide wire. Moreover, when different guidewires are subjected to bending rupture tests of different degrees, different winding shafts 30 can be directly selected for rupture tests, thereby improving test efficiency and not taking up much space overall. The winding shafts 30 can be assembled flexibly, which is convenient for production and manufacturing. In other embodiments, multiple winding shafts 30 can be directly formed into one piece, or multiple winding shafts 30 and the rotating block 40 can be formed into one piece.

[0028] In order to improve the connection stability between two adjacent winding shafts 30 and between the winding shaft 30 and the rotating block 40, a magnetic attraction part 43 can be installed on the plug block 41, and the magnetic attraction part 43 can be installed on the bottom wall of the slot 42 of the winding shaft 30 and the rotating block 40. The magnetic attraction part 43 on the plug block 41 and the magnetic attraction part 43 on the bottom wall of the slot 42 are adsorbed on each other, so that the connection between the two adjacent winding shafts 30 and between the winding shaft 30 and the rotating block 40 can be more stable after insertion, thereby ensuring the overall transmission stability.

[0029] Embodiment 2:

[0030] Reference Figure 3 The present embodiment is different from the first embodiment in that it also includes a rebound component, which is installed between the handle 20 and the support seat 11. After the guide wire is inserted into the through hole 31 corresponding to the winding shaft 30, the handle 20 is rotated a certain number of times to wind the guide wire around the winding shaft 30. After observing whether the guide wire is broken, the handle is released to allow the handle to automatically return to its original position, driving the winding shaft 30 to rotate in the opposite direction, loosening the guide wire wound around the winding shaft 30, thereby facilitating the removal of the guide wire from the winding shaft 30 without the operator having to reversely rotate the handle 20, thereby improving the test efficiency and reducing the operator's operating burden.

[0031] Specifically, the rebound assembly includes a scroll spring 50, one inner end of which is fixed to a side of the support seat 11 close to the handle 20, and one outer end of the scroll spring 50 is provided with a connecting rod, which is fixed to the handle 20. When the handle 20 is turned, the scroll spring 50 is driven to contract and store energy. After the handle 20 is released, the scroll spring 50 releases its elastic potential, driving the handle 20 to reverse to its initial position, thereby reducing the trouble of the operator rotating the handle 20 in the opposite direction, improving the efficiency of the guide wire coming off the winding shaft 30, and improving the efficiency of the batch guide wire rupture test.

[0032] After releasing the handle 20, in order to allow the handle 20 to return to its original position under the action of the spiral spring 50, and to ensure the stability of the handle 20, a vertical plate 13 is installed on the side of the base 10 close to the handle 20, and a connecting hole for the rotating block 40 to pass through is opened in the middle of the vertical plate 13, and the rotating block 40 passes through the vertical plate 13 and is connected to the handle 20, and one end of the inner side of the spiral spring 50 is fixed on the inner side wall of the connecting hole. A vortex groove 61 is opened on the side of the vertical plate 13 close to the handle 20, and the vortex center of the vortex groove 61 is set corresponding to the rotation center of the handle 20. A sliding groove 62 is opened on the side of the handle 20 close to the vertical plate 13, and the length direction of the sliding groove 62 is the same as the direction of the rotation radius of the handle 20, and one end of the sliding groove 62 is located close to the rotation center of the handle 20. A slider 60 is slidably arranged in the sliding groove 62, and the cross-sections of the slider 60 and the sliding groove 62 can be T-shaped or dovetail-shaped, so that the slider 60 is not easy to escape from the sliding groove 62. A roller 80 is rotatably mounted on one side of the slider 60 . The roller 80 is embedded in the vortex groove 61 and can slide in the vortex groove 61 along the vortex direction.

[0033] When the handle 20 is in the initial state, the slider 60 is located at one end of the slide groove 62 close to the rotation center of the handle 20 , and the roller 80 is located at one end inside the vortex groove 61 . When the handle 20 is turned to wind the guide wire, the roller 80 gradually slides from the inner end of the vortex groove 61 to the other end of the outer side. At this time, the roller 80 will drive the slider 60 to slide on the slide groove 62 away from the center of the handle 20; when the guide wire is to be released, the rotating handle 20 is directly released. Under the action of the vortex spring 50, when the handle 20 is reversed, the roller 80 slides from the outer end of the vortex groove 61 to the inner end, and the slider 60 slides toward the center of the handle 20. When the handle 20 returns to the initial position, the roller 80 is just at the inner end of the vortex groove 61, and the slider 60 is just at the end of the slide groove 62 close to the rotation center of the handle 20. Under the restriction of the side wall of the vortex groove 61 on the roller 80, and the restriction of the side wall of the slide groove 62 on the slider 60, the slider 60 and the roller 80 cannot continue to slide, thereby keeping the handle 20 in the initial position.

[0034] Embodiment three:

[0035] Reference Figure 4, the difference between this embodiment and the first embodiment is that a rebound component is also provided, and the difference between this embodiment and the second embodiment is the difference in the rebound component. In this embodiment, the rebound component includes a coil spring 70, one end of the coil spring 70 abuts against the side of the slider 60 away from the rotation center of the handle 20, and the end of the coil spring 70 away from the slider 60 abuts against the side wall corresponding to the slide groove 62. A guide rod 71 is installed in the slide groove 62, and the length direction of the guide rod 71 is the same as the length direction of the slide groove 62. The cross section of the guide rod 71 is circular, and the guide rod 71 passes through the slider 60. The coil spring 70 is sleeved on the outer side wall of the guide rod 71. Thereby, the coil spring 70 can be extended and retracted under the guiding action of the guide rod 71, and the stability of the elastic extension and retraction of the coil spring 70 is guaranteed.

[0036] When the handle 20 is rotated to wind the guide wire, the roller 80 gradually slides from the inner end of the vortex groove 61 to the other end of the outer side. At this time, the roller 80 will drive the slider 60 to overcome the elastic force of the coil spring 70 and slide on the slide groove 62 away from the center of the handle 20; when the guide wire needs to be loosened, the rotating handle 20 is directly loosened, and under the action of the coil spring 70, the slider 60 is pushed to slide in the direction close to the center of the handle 20, thereby driving the roller 80 to slide from the outer end of the vortex groove 61 to the inner end. At this time, the handle 20 can be rotated in the opposite direction; when the roller 80 is just at the inner end of the vortex groove 61 and the slider 60 is just at the end of the slide groove 62 close to the rotation center of the handle 20, the handle 20 just reaches and remains in the initial position, so that the handle 20 can automatically and stably return to the initial position.

[0037] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A guidewire rupture test tool, characterized in that: include: A base, with a handle rotatably mounted on one side; A rotating shaft is rotatably mounted on the base, the rotating shaft is transmission-connected with the handle, the rotating shaft comprises a plurality of winding shafts with different diameters and coaxially arranged, and the winding shafts are provided with through holes.

2. A guidewire rupture test tool according to claim 1, characterized in that: Support seats are installed on both sides of the base, and rotating blocks are rotatably installed on the opposite sides of the two support seats. Matching plug-in blocks and slots are respectively provided at both ends of the winding shaft to enable two adjacent winding shafts to be plugged in. The plug-in blocks and slots are respectively provided at one end of the two rotating blocks that are close to each other. After the winding shafts are plugged in, the two ends are respectively plugged into the corresponding rotating blocks, and the handle is transmission connected to one of the rotating blocks.

3. A guidewire rupture test tool according to claim 2, characterized in that: The inserting block and the bottom wall of the slot are respectively provided with magnetic parts that attract each other.

4. A guidewire rupture test tool according to claim 2, characterized in that: The support seat is fixed with a protrusion and installed with bolts, and the protrusion is detachably installed on the base through the bolts.

5. The guidewire rupture test tool according to claim 1, characterized in that: A rebound component is installed between the handle and the base. After the handle is rotated, the rebound component can restore the handle to an initial position relative to the base.

6. A guidewire rupture test tool according to claim 5, characterized in that: The rebound assembly comprises a scroll spring, one end of which is connected to the base, and the other end of which is connected to the handle.

7. A guidewire rupture test tool according to claim 5, characterized in that: The handle is provided with a slider which slides along the rotation radius direction, the base is provided with a vortex groove for the slider to be embedded and slide, the center of the vortex groove corresponds to the rotation center of the handle, and when the handle is in the initial position, the slider is located at one end of the vortex groove.

8. A guidewire rupture test tool according to claim 7, characterized in that: The handle is provided with a sliding groove for the sliding block to slide, and the rebound component comprises a coil spring, one end of the coil spring abuts against the sliding block, and the other end abuts against a side wall at one end of the sliding groove.

9. A guidewire rupture test tool according to claim 8, characterized in that: A guide rod penetrating the sliding block is installed in the sliding groove, the length direction of the guide rod is parallel to the length direction of the sliding groove, and the coil spring is sleeved outside the guide rod.

10. A guidewire rupture test tool according to claim 7, characterized in that: A roller is rotatably mounted on one side of the slider, and the roller is slidably arranged in the vortex groove.

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