CN117030494A - Guide wire testing device - Google Patents
Guide wire testing device Download PDFInfo
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- CN117030494A CN117030494A CN202311001755.9A CN202311001755A CN117030494A CN 117030494 A CN117030494 A CN 117030494A CN 202311001755 A CN202311001755 A CN 202311001755A CN 117030494 A CN117030494 A CN 117030494A
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- 238000012360 testing method Methods 0.000 title claims abstract description 117
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 229920000742 Cotton Polymers 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000003101 oviduct Anatomy 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a guide wire testing device, and relates to the technical field of medical instrument testing. The guide wire testing device comprises a testing table, wherein a testing mechanism for testing flexibility and smoothness of the guide wire is arranged on the upper end face of the testing table, a jacking mechanism for testing restorability of the guide wire is arranged on the right part of the upper end face of the testing table, a marking unit is arranged between the testing mechanism and the jacking mechanism, and a horizontal channel communicated with the tail end of a semicircular channel is further formed in the front end face of the sliding plate.
Description
Technical Field
The invention relates to the technical field of medical instrument testing, in particular to a guide wire testing device.
Background
The guide wire is a basic instrument for modern intravascular treatment, the operations such as radiography, thrombus taking, stent placement, oviduct recanalization and the like in modern medicine are all applied to the guide wire, the guide wire is a common instrument for interventional operation, the guide wire has the functions of supporting, guiding and positioning other instruments, and because the guide wire is a tortuous structure path such as bending, turning and the like in the interventional treatment process, the guide wire has more strict requirements on flexibility, the medical guide wire is usually required to be subjected to multiple performance tests to ensure quality and reliability, and the test aspects mainly include: strength and durability, flexibility and flexibility, surface smoothness, elasticity and recovery, etc.
The traditional guide wire flexible test equipment drives the guide wire to twist in a wave shape through a plurality of clamping heads which reciprocate in opposite directions to realize detection, but the test mode can finish the test of the whole guide wire section only after long guide wire test, has limited applicability and influences the test efficiency, and in addition, one guide wire needs to be taken down and moved to another test equipment to carry out another detection after the test is finished, so that the operation is complex, and the test speed is reduced.
Disclosure of Invention
The invention provides a guide wire testing device, which solves the technical problems that the length of a testing section of the conventional guide wire flexible testing equipment is not adjustable, the whole section of the guide wire can be tested only after a long guide wire is tested, the testing efficiency is low, and the guide wire needs to be taken down and moved to another testing equipment to be tested after one of the tests is finished, and the operation is complicated.
The invention provides a guide wire testing device, which comprises a testing table, wherein a testing mechanism for testing flexibility and smoothness of a guide wire is arranged on the upper end surface of the testing table, a jacking mechanism for testing restorability of the guide wire is arranged on the right part of the upper end surface of the testing table, a marking unit is arranged between the testing mechanism and the jacking mechanism on the upper end surface of the testing table, a feeding mechanism is arranged on the left side of the testing mechanism on the upper end surface of the testing table, and the testing mechanism comprises: through pillar fixed connection on the testboard U-shaped frame, slidable mounting two slides on the horizontal section upper portion of U-shaped frame, a plurality of arrangement install the rectangular plate between two slides, install at the inside friction test piece of rectangular plate and set up in U-shaped frame front portion be used for the spacing tightening assembly to slide and rectangular plate, half circular channel has all been seted up to slide and rectangular plate preceding terminal surface, adjacent two rectangular plate and slide and half circular channel protrusion opposite direction and the intercommunication on the rectangular plate adjacent with it, the horizontal channel with half circular channel terminal intercommunication has still been seted up to the slide preceding terminal surface.
In a possible implementation manner, the friction test piece is including seting up at the inside mounting groove that communicates with the semicircle channel of rectangular plate, mounting groove cell wall fixedly connected with sliding ring, the inside sliding connection of sliding ring has the ejector pin, and the common fixedly connected with reset spring of sliding ring and ejector pin, the ejector pin is close to the one end fixedly connected with friction block of semicircle channel, the inside fixedly connected with revolving post of mounting groove, the outside rotation of revolving post is connected with receives the driving lever, and the outside rotation of revolving post is connected with and receives driving lever articulated pull rod, fixedly connected with extension spring between pull rod and the driving lever, the inside fixed block fixedly connected with bandwagon that passes through of mounting groove, and the one end fixedly connected with outside the pull rod of fixed block is kept away from to the bandwagon, and bandwagon balance middle part and ejector pin tip laminating mutually.
In a possible implementation manner, the jacking mechanism comprises a guide pipe which is fixedly connected to the test bench through a support rod in a bilateral symmetry manner, two strip-shaped transparent observation plates which are arranged up and down are fixedly connected between the guide pipes together, a sliding column is arranged in the front portion of an inner cavity of the guide pipe in a penetrating manner, a spring which is sleeved outside the sliding column is fixedly connected between the sliding column and the guide pipe together, an arc clamping piece is fixedly connected to the rear end of the sliding column, a connecting plate is fixedly connected to the front end of the sliding column together, a jacking column is connected to the middle part of the connecting plate in a sliding manner, a reset spring which is sleeved outside the jacking column is fixedly connected to the outer part of the jacking column, an electric telescopic rod is fixedly connected to the front end of the jacking column, and the front end of the electric telescopic rod is fixedly connected to the upper end face of the test bench through a fixing plate.
In one possible implementation mode, the marking unit comprises a disc-shaped box which is rotationally connected to the test bench through a vertical plate, a plurality of rectangular spring telescopic tubes are communicated with the circumference outer wall of the disc-shaped box at equal intervals, an ink storage cotton block is arranged in the inner cavity of the disc-shaped box, a plurality of cotton columns which correspond to the rectangular spring telescopic tubes and are arranged in the rectangular spring telescopic tubes are fixedly connected with the outer circumference of the ink storage cotton block at equal intervals, and elastic arc-shaped sheets are hinged to the end parts of the rectangular spring telescopic tubes.
In a possible implementation manner, tighten up the subassembly including rotating the pivot of connecting in the terminal surface left part before the U-shaped frame, pivot outside fixedly connected with reel, the outside winding of reel is provided with tightens up the rope, and collects the one end fixed connection that the reel was kept away from to the rope and be located the slide preceding terminal surface in right part, pivot outside fixedly connected with clockwork spring, the one end fixed connection that the pivot was kept away from to the clockwork spring in U-shaped frame front portion, the arris groove has been seted up to the inside of pivot, the terminal surface is through L shaped plate fixedly connected with spring telescopic column before the U-shaped frame, spring telescopic column rear end fixedly connected with is used for with arris groove complex prism.
In one possible implementation manner, the feeding mechanism comprises a C-shaped frame fixedly connected to the upper end face of the test bench through a vertical rod, the opposite sides of the transverse section of the C-shaped frame are fixedly connected with a wheel frame through spring telescopic rods, and the inside of the wheel frame is slidably connected with rollers.
In one possible implementation manner, the upper end face of the test bench is located right below the disc-shaped box and fixedly connected with an arc-shaped duct piece through a fixing column, and the ends of the arc-shaped duct piece are fixedly connected with guide rings.
From the above technical scheme, the invention has the following advantages:
according to the invention, the S-shaped grooves are formed by selecting the proper number of rectangular plates which are arranged together, so that the S-shaped grooves formed by the semicircular grooves are formed by the semicircular grooves which are opposite in direction and communicated, the length of the S-shaped grooves formed by the semicircular grooves can be adjusted according to the requirements, the device is suitable for testing guide wires with different lengths, the length of a tested section in the process of testing the guide wires can be adjusted, the testing speed is increased, and the detection efficiency is improved.
According to the invention, the guide wire slides in the semicircular channel to carry out a flexible test and simultaneously touches the deflector rod, and then the friction block is driven to move and touch the outside of the guide wire by the combination of the tension spring, the tension rod, the flat belt and the ejector rod, so that the strength and durability of the guide wire can be tested, the two test processes are combined with each other, the step of moving the guide wire is omitted, and the test speed is improved.
According to the invention, the friction force between the worn area outside the guide wire and the elastic arc piece is increased by moving the guide wire, so that the disc-shaped box is driven to rotate, and then the rectangular spring telescopic tube is driven to shrink, so that the end part of the cotton column is abutted against the worn area of the guide wire, and therefore, the area with unqualified broken guide wire after the test can be marked, and visual observation of unqualified guide wire is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a guide wire testing device provided by the invention.
Fig. 2 is a schematic diagram of a test mechanism mounting structure provided by the present invention.
Fig. 3 is an enlarged schematic diagram of a portion a of fig. 2 according to the present invention.
Fig. 4 is a schematic view of a friction test piece mounting structure provided by the invention.
Fig. 5 is a schematic diagram of a mounting structure of a marking unit according to the present invention.
Fig. 6 is an enlarged schematic view of the structure of part B in fig. 5 according to the present invention.
Fig. 7 is a schematic diagram of an installation structure of a jack-up mechanism provided by the invention.
Wherein the above figures include the following reference numerals:
1. a test bench; 2. a testing mechanism; 21. a U-shaped frame; 22. a slide plate; 23. a rectangular plate; 24. a friction test piece; 241. a mounting groove; 242. a slip ring; 243. a push rod; 244. a friction block; 245. a driven lever; 246. a pull rod; 247. a tension spring; 248. a flat belt; 25. a tightening assembly; 251. a rotating shaft; 252. a reel; 253. tightening the rope; 254. a prismatic groove; 255. a prism; 26. a semicircular channel; 27. a horizontal channel; 3. a jack-up mechanism; 31. a guide tube; 32. a strip-shaped transparent observation plate; 33. an arc clamping piece; 34. a connecting plate; 35. a top column; 36. an electric telescopic rod; 4. a marking unit; 41. a disc-shaped case; 42. rectangular spring extension tube; 43. ink storage cotton block; 44. cotton column; 45. an elastic arc-shaped piece; 5. a feeding mechanism; 51. a C-shaped frame; 52. a spring telescoping rod; 53. a roller; 6. arc-shaped duct pieces; 7. a guide ring.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 and 3, the present invention provides a technical solution: the utility model provides a seal wire testing arrangement, including testboard 1, testboard 1 up end installs the testing mechanism 2 that is used for testing flexibility and smoothness to the seal wire, testboard 1 up end right part installs the jack-up mechanism 3 that is used for testing restorability to the seal wire, testboard 1 up end just is located and installs mark unit 4 between testboard 2 and jack-up mechanism 3, testboard 1 up end just is located testboard 2 left side and installs feed mechanism 5, feed mechanism 5 includes C-shaped frame 51 at testboard 1 up end through montant fixed connection, C-shaped frame 51 transverse segment opposite side all is connected with the wheel carrier through spring telescopic link 52 fixedly, the inside sliding connection of wheel carrier has gyro wheel 53.
Referring to fig. 2, in the present embodiment, the testing mechanism 2 includes: the test bench comprises a U-shaped frame 21 fixedly connected to the test bench 1 through a support, two sliding plates 22 slidably mounted on the upper portion of the transverse section of the U-shaped frame 21, a plurality of rectangular plates 23 arranged between the two sliding plates 22, friction test pieces 24 mounted inside the rectangular plates 23 and tightening assemblies 25 arranged in the front of the U-shaped frame 21 and used for limiting the sliding plates 22 and the rectangular plates 23, magnetic strip-sucking blocks are fixedly connected to the left side and the right side of the rectangular plates 23, the two adjacent rectangular plates 23 can be firmly connected together through mutual attraction of the magnetic strip-sucking blocks between the two adjacent rectangular plates 23, semicircular grooves 26 are formed in the front end faces of the sliding plates 22 and the rectangular plates 23, the protruding directions of the two adjacent rectangular plates 23 and the semicircular grooves 26 on the sliding plates 22 adjacent to the sliding plates are opposite and are communicated, and horizontal grooves 27 communicated with the tail ends of the semicircular grooves 26 are formed in the front end faces of the sliding plates 22.
Referring to fig. 2 and 3, the tightening assembly 25 includes a rotating shaft 251 rotatably connected to a left portion of a front end surface of the U-shaped frame 21, a winding wheel 252 fixedly connected to an outer portion of the rotating shaft 251, a tightening rope 253 wound around the outer portion of the winding wheel 252, one end of the collecting rope, which is far away from the winding wheel 252, fixedly connected to a front end surface of the sliding plate 22 located on a right portion, a spring fixedly connected to an outer portion of the rotating shaft 251, one end of the spring, which is far away from the rotating shaft 251, is fixedly connected to a front portion of the U-shaped frame 21, a rib groove 254 is formed in the rotating shaft 251, a spring expansion column is fixedly connected to the front end surface of the U-shaped frame 21 through an L-shaped plate, and a prism 255 for being matched with the rib groove 254 is fixedly connected to a rear end of the spring expansion column.
Referring to fig. 4, the friction test piece 24 includes a mounting groove 241 formed inside the rectangular plate 23 and communicated with the semicircular groove 26, a sliding ring 242 fixedly connected to a groove wall of the mounting groove 241, an ejector rod 243 slidably connected to the inside of the sliding ring 242, a return spring fixedly connected to the sliding ring 242 and the ejector rod 243, a friction block 244 fixedly connected to one end of the ejector rod 243 close to the semicircular groove 26, an arc-shaped groove formed on one side of the friction block 244 close to the semicircular groove 26, and the arc-shaped groove being rough in arc surface, so that the friction block 244 is attached to the outside of the guide wire, accuracy of a test result is improved, a rotating column is fixedly connected to the inside of the mounting groove 241, a deflector rod 245 is rotatably connected to the outside of the rotating column, a pull rod 246 hinged to the deflector rod 245 is rotatably connected to the outside of the rotating column, a tension spring 247 is fixedly connected between the pull rod 246 and the deflector rod 245, a flat belt 248 is fixedly connected to the inside of the mounting groove 241, one end of the flat belt 248 far from the fixed block is fixedly connected to the outside of the pull rod 246, and the middle of the flat belt 248 is attached to the end of the ejector rod 243.
Selecting a proper number of rectangular plates 23 according to the length of the measured guide wire, splicing the rectangular plates 23 between two sliding plates 22 in sequence, arranging the selected rectangular plates 23 in the U-shaped frame 21 in sequence in a positive-negative order, splicing the rectangular plates 23 together to form S-shaped grooves in opposite directions and communicated semicircular grooves 26 together, then tightening and limiting the spliced rectangular plates 23 and sliding plates 22 through a tightening assembly 25, driving a rotating shaft 251 to rotate through a spring, driving a winding wheel 252 to rotate through the rotating shaft 251 to wind and retract a tightening rope 253, further pulling the sliding plate 22 positioned at the right part to move leftwards, enabling the adjacent sliding plates 22 and the adjacent rectangular plates 23 to be tightly butted together, inserting a prism 255 into the edge groove 254 to limit and lock the winding wheel 252, the guide wire passes through the feeding mechanism 5 from left to right, then passes through the testing mechanism 2, the marking unit 4 and the jacking mechanism 3 in sequence by pushing of the feeding mechanism 5, an external driving source is connected with the roller 53 in a transmission way and drives the roller 53 to rotate, the roller 53 is abutted against the outside of the guide wire under the pushing of the spring telescopic rod 52 so as to push the guide wire to move rightwards into the testing mechanism 2, the guide wire moves rightwards into the horizontal channel 27 in the sliding plate 22 positioned at the left part, then enters into the semicircular channel 26 in the rectangular plate 23 from the semicircular channel 26 in the sliding plate 22, and the guide wire bends and twists in the S-shaped channel formed by the semicircular channel 26 together, so that the flexible test of the guide wire is realized, and the guide wire is suitable for rapid detection of guide wires with different lengths.
The guide wire enters the semicircular groove 26 in the rectangular plate 23 and slides to touch the friction test piece 24, the guide wire touches the deflector rod 245 and presses the deflector rod to rotate around the rotating column, so that the deflector rod 245 is pulled by the tension spring 247 to rotate the pull rod 246, the pull rod 246 drives the flat belt 248 to move, the flat belt 248 is gradually tightened, the flat belt 248 is tightened and then the push rod 243 is pushed to slide into the semicircular groove 26, the friction block 244 is driven to extend into the semicircular groove 26 from the mounting groove 241 until the friction block is abutted against the surface of the guide wire, the friction block 244 is always abutted and rubbed in the sliding process of the guide wire, the strength and durability of the guide wire can be tested, the two test processes are combined with each other, the step of moving the guide wire is omitted, and the test efficiency is improved.
Referring to fig. 5 and 6, in this embodiment, the marking unit 4 includes a disc-shaped box 41 rotatably connected to the test bench 1 through a vertical plate, a plurality of rectangular spring telescopic tubes 42 are equidistantly connected to the peripheral outer wall of the disc-shaped box 41, an ink storage cotton block 43 is disposed in an inner cavity of the disc-shaped box 41, a plurality of cotton columns 44 corresponding to the rectangular spring telescopic tubes 42 and disposed in the rectangular spring telescopic tubes are fixedly connected to the outer periphery of the ink storage cotton block 43 at equal intervals, an elastic arc-shaped sheet 45 is hinged to the end of each rectangular spring telescopic tube 42, a through hole for extending the cotton column 44 is formed in the surface wall of each elastic arc-shaped sheet 45, an arc-shaped tube sheet 6 is fixedly connected to the upper end face of the test bench 1 and located right below the disc-shaped box 41 through a fixing column, and guide rings 7 are fixedly connected to the end of each arc-shaped tube sheet 6.
The guide wire after the test by the semicircular groove 26 slides out of the horizontal groove 27 in the sliding plate 22 positioned at the right part into the guide ring 7 and then into the arc tube sheet 6, at the moment, the elastic arc sheet 45 positioned at the left lower part of the disc-shaped box 41 is abutted against the outer part of the guide wire, the guide wire slides and rubs with the elastic arc sheet 45 attached to the outer part of the guide wire in the rightward movement process, when the broken area of the outer part of the guide wire is in contact with the elastic arc sheet 45 in the friction test of the friction block 244, the friction force between the elastic arc sheet 45 and the guide wire is increased, the guide wire moves to drive the elastic arc sheet 45 to move, the driven elastic arc sheet 45 drives the disc-shaped box 41 to rotate through the rectangular spring telescopic tube 42, meanwhile, the rectangular spring telescopic tube 42 is compressed, and when the elastic arc sheet 45 moves along with the guide wire to the nearest distance from the disc-shaped box 41, the cotton column 44 positioned in the rectangular spring telescopic tube 42 is abutted against the surface wall of the guide wire, and ink dots are coated on the guide wire, so that the unqualified area after the test of the guide wire can be marked.
Referring to fig. 7, in this embodiment, the jack-up mechanism 3 includes a guide tube 31 which is symmetrically and fixedly connected to the test bench 1 through a support rod, two bar-shaped transparent observation plates 32 which are vertically arranged are fixedly connected between the two guide tubes 31, a sliding column is connected to the front portion of an inner cavity of the guide tube 31 in a penetrating manner, a spring sleeved outside the sliding column is fixedly connected between the sliding column and the guide tube 31, an arc clamping piece 33 is fixedly connected to the rear end of the sliding column, a connecting plate 34 is fixedly connected to the front ends of the two sliding columns, a jack-up column 35 is connected to the middle portion of the connecting plate 34 in a sliding manner, a reset spring sleeved outside the jack-up column 35 is fixedly connected to the outer portion of the jack-up column 35, an electric telescopic rod 36 is fixedly connected to the front end of the electric telescopic rod 36 through a fixing plate, and the front end of the electric telescopic rod 36 is fixedly connected to the upper end face of the test bench 1.
When the guide wire moves rightward and passes through the jacking mechanism 3, the electric telescopic rod 36 is controlled to stretch to drive the jacking column 35 to move backward, the jacking column 35 then drives the connecting plate 34 to move backward synchronously, the connecting plate 34 drives the arc clamping pieces 33 to move backward through the sliding column until the arc clamping pieces 33 abut against the guide wire to clamp the guide wire, the connecting plate 34 stops moving backward, the jacking column 35 continues to move backward and then drives the guide wire clamped between the two arc clamping pieces 33 to move backward, the guide wire is deformed, then the electric telescopic rod 36 drives the jacking column 35 to move forward, the guide wire is contracted and restored to a natural state, and whether the restored guide wire is positioned on the same straight line as an indication line on the strip-shaped transparent observation plate 32 or not can be detected, so that whether the guide wire restoration is qualified or not can be detected.
During operation, firstly, a proper number of rectangular plates 23 are selected according to the length of the guide wire and are spliced together, so that the time for the test mechanism 2 to test the guide wire can be reduced, the guide wire is penetrated into the feeding mechanism 5, the feeding mechanism 5 drives the guide wire to move rightwards, the guide wire moves rightwards to pass through the test mechanism 2, the guide wire is subjected to flexible bending test by an S-shaped groove formed by a plurality of semicircular grooves 26 communicated together in the test mechanism 2, meanwhile, the friction test piece 24 also operates synchronously, and accordingly strength and durability of the guide wire can be tested, then the guide wire passes through the marking unit 4, a place where the broken part appears outside the guide wire during strength test is marked by the marking unit 4, and finally, the guide wire passes through the jacking mechanism 3, and the guide wire is subjected to restorability test by the jacking mechanism 3.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "first," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", "second", "first", "second" may include at least one such feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (7)
1. A guide wire testing device, comprising a test bench (1), characterized in that: the device comprises a test table (1), a guide wire, a test mechanism (2) for testing flexibility and smoothness of the guide wire, a jack-up mechanism (3) for testing restorability of the guide wire, a marking unit (4) arranged between the test mechanism (2) and the jack-up mechanism (3) and positioned on the upper end surface of the test table (1), and a feeding mechanism (5) arranged on the left side of the test mechanism (2) and positioned on the upper end surface of the test table (1);
the test mechanism (2) comprises:
the device comprises a U-shaped frame (21) fixedly connected to a test bench (1) through a support column, two sliding plates (22) slidably arranged at the upper part of the transverse section of the U-shaped frame (21), a plurality of rectangular plates (23) arranged between the two sliding plates (22), friction test pieces (24) arranged in the rectangular plates (23) and a tightening assembly (25) arranged at the front part of the U-shaped frame (21) and used for limiting the sliding plates (22) and the rectangular plates (23);
the sliding plate (22) and the rectangular plate (23) are provided with semicircular grooves (26) on the front end surfaces, two adjacent rectangular plates (23) and the sliding plate (22) are opposite in protruding direction and communicated with the semicircular grooves (26) on the rectangular plates (23) adjacent to the two adjacent rectangular plates, and the front end surface of the sliding plate (22) is provided with a horizontal groove (27) communicated with the tail ends of the semicircular grooves (26).
2. A guidewire testing device according to claim 1, wherein: the friction test piece (24) is including seting up inside rectangular plate (23) and with mounting groove (241) of semicircle channel (26) intercommunication, mounting groove (241) cell wall fixedly connected with sliding ring (242), sliding ring (242) inside sliding connection has ejector pin (243), and sliding ring (242) and ejector pin (243) fixedly connected with reset spring jointly, one end fixedly connected with friction block (244) that ejector pin (243) is close to semicircle channel (26), mounting groove (241) inside fixedly connected with steering column, the outside rotation of steering column is connected with and receives driving lever (245), and the outside rotation of steering column is connected with and receives driving lever (245) articulated pull rod (246), fixedly connected with extension spring (247) between pull rod (246) and the driving lever (245), inside through fixed block fixedly connected with bandlet (248), the one end fixedly connected with outside pull rod (246) that the fixed block was kept away from to bandlet (248), and bandlet (248) middle part and ejector pin (243) tip laminating mutually.
3. A guidewire testing device according to claim 1, wherein: the jacking mechanism (3) comprises guide pipes (31) which are fixedly connected to the test bench (1) through support rods in a bilateral symmetry mode, two strip-shaped transparent observation plates (32) which are arranged up and down are fixedly connected between the guide pipes (31) together, sliding columns are fixedly connected to the front portions of inner cavities of the guide pipes (31) in a penetrating mode, springs which are fixedly connected to the outer portions of the sliding columns in a sleeved mode are fixedly connected between the sliding columns and the guide pipes (31), arc clamping pieces (33) are fixedly connected to the rear ends of the sliding columns, connecting plates (34) are fixedly connected to the front ends of the sliding columns in a jointly, jacking columns (35) are fixedly connected to reset springs which are fixedly connected to the outer portions of the jacking columns (35) in a sleeved mode, electric telescopic rods (36) are fixedly connected to the front ends of the jacking columns (35), and the front ends of the electric telescopic rods are fixedly connected to the upper end faces of the test bench (1) through fixing plates.
4. A guidewire testing device according to claim 1, wherein: the marking unit (4) comprises a disc-shaped box (41) which is rotationally connected to the test bench (1) through a vertical plate, a plurality of rectangular spring telescopic tubes (42) are communicated with the circumference outer wall of the disc-shaped box (41) at equal intervals, an ink storage cotton block (43) is arranged in an inner cavity of the disc-shaped box (41), a plurality of cotton columns (44) which correspond to the rectangular spring telescopic tubes (42) and are arranged in the rectangular spring telescopic tubes are fixedly connected with the outer circumference equal intervals of the ink storage cotton block (43), and elastic arc-shaped sheets (45) are hinged to the end parts of the rectangular spring telescopic tubes (42).
5. A guidewire testing device according to claim 1, wherein: tightening assembly (25) are including rotating pivot (251) of connecting in the terminal surface left part before U-shaped frame (21), pivot (251) outside fixedly connected with reel (252), reel (252) outside winding is provided with tightens up rope (253), and collect the one end fixed connection that the reel (252) was kept away from in slide (22) preceding terminal surface that is located the right part to the rope, pivot (251) outside fixedly connected with clockwork spring, the one end fixed connection that pivot (251) was kept away from to the clockwork spring is in U-shaped frame (21) front portion, prismatic groove (254) have been seted up to pivot (251) inside, the terminal surface is through L shaped plate fixedly connected with spring telescopic column before U-shaped frame (21), spring telescopic column rear end fixedly connected with is used for prismatic (255) with prismatic groove (254) complex.
6. A guidewire testing device according to claim 1, wherein: the feeding mechanism (5) comprises a C-shaped frame (51) fixedly connected to the upper end face of the test bench (1) through a vertical rod, wheel frames are fixedly connected to opposite sides of the transverse section of the C-shaped frame (51) through spring telescopic rods (52), and idler wheels (53) are slidably connected to the inside of the wheel frames.
7. The guidewire testing device of claim 4, wherein: the test bench (1) up end just is located disk box (41) under through fixed column fixedly connected with arc section of jurisdiction (6), all fixedly connected with guide ring (7) of arc section of jurisdiction (6) tip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311001755.9A CN117030494B (en) | 2023-08-09 | 2023-08-09 | Guide wire testing device |
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| CN202311001755.9A CN117030494B (en) | 2023-08-09 | 2023-08-09 | Guide wire testing device |
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