CN220508599U

CN220508599U - Three-in-one instrument for testing flexibility, three-point bending and tube strength of guide wire of catheter

Info

Publication number: CN220508599U
Application number: CN202321769421.1U
Authority: CN
Inventors: 吴林; 罗浩; 周波
Original assignee: Jiangsu Puli Youchuang Technology Co ltd
Current assignee: Jiangsu Puli Youchuang Technology Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-02-20
Anticipated expiration: 2033-07-07

Abstract

The utility model provides a three-in-one testing instrument for flexibility, three-point bending and pipe strength of a catheter guide wire, and relates to the technical field of testing, comprising the following steps: the testing device comprises a mounting base, wherein a testing box body is mounted at the top of the mounting base, a supporting frame and a motor fixing frame II are fixedly connected to the bottom of the inner wall of the testing box body, a testing driving assembly is mounted on the supporting frame, an intensity testing assembly is mounted on the motor fixing frame II, two groups of limiting sliding grooves I are symmetrically formed in the bottom of the inner wall of the testing box body, two groups of air cylinders I are movably arranged in the two groups of limiting sliding grooves I respectively, and the same anti-falling assembly is arranged at the top of each of the two groups of air cylinders I. The utility model integrates flexibility, three-point bending and pipe strength test, is convenient for testing different sections of strength of the test workpiece, and provides scientific basis for pipe design parameters through testing different strengths of the test workpiece.

Description

Three-in-one instrument for testing flexibility, three-point bending and tube strength of guide wire of catheter

Technical Field

The utility model relates to the technical field of testing, in particular to a three-in-one instrument for testing the flexibility, three-point bending and tube strength of a catheter guide wire.

Background

When the main stream in the current market tests the guide wire of the guide tube, the guide wire is tested one by one through a plurality of instruments, only a single guide wire end softness testing instrument and a single support three-point bending testing instrument exist in China at present, no guide tube body strength testing instrument exists, and three testing instruments are not placed together. Therefore, the utility model provides a three-in-one testing instrument for the flexibility, three-point bending and pipe body strength of the guide wire of the catheter, which solves the problems.

Disclosure of Invention

The utility model provides a three-in-one testing instrument for flexibility, three-point bending and tube strength of a catheter guide wire, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: comprising the following steps: the testing device comprises a mounting base, wherein a testing box body is mounted at the top of the mounting base, a supporting frame and a motor fixing frame II are fixedly connected to the bottom of the inner wall of the testing box body, a testing driving assembly is mounted on the supporting frame, an intensity testing assembly is mounted on the motor fixing frame II, two groups of limiting sliding grooves I are symmetrically formed in the bottom of the inner wall of the testing box body, two groups of air cylinders I are movably arranged in the two groups of limiting sliding grooves I respectively, and the same anti-falling assembly is arranged at the top of each of the two groups of air cylinders I.

Preferably, the top of the mounting base is provided with a data display, and the data display is electrically connected with the test box body.

Preferably, the test drive assembly comprises: the first motor fixing frame is fixedly connected with the support frame, the first motor fixing frame is internally embedded with the first driving motor, an output shaft of the first driving motor movably penetrates through the support frame, and a threaded rod is fixedly connected to the output shaft of the first driving motor.

Preferably, the L-shaped fixing frame is fixedly connected with the supporting frame, the lower end of the threaded rod is movably connected with the horizontal section of the L-shaped fixing frame, the driving block is in threaded sleeve connection with the outer wall of the threaded rod, the upper end of the first connecting rod is fixedly connected with the driving block, and the pressure sensor is installed at the lower end of the first connecting rod.

Preferably, the upper end of the limiting rod is fixedly connected with the supporting frame, the lower end of the limiting rod movably penetrates through the driving block, and the limiting rod is fixedly connected with an anti-drop ring.

Preferably, the strength test assembly comprises: the motor fixing frame II and the two groups of L-shaped fixing blocks are fixedly connected to the bottom of the inner wall of the test box body, the two groups of L-shaped fixing blocks are symmetrically arranged on two sides of the motor fixing frame II, the cylinder II is fixedly connected with the L-shaped fixing blocks, the output end of the cylinder II is abutted to the side wall of the cylinder I, the fixing block is fixedly connected with the output end of the cylinder I, the driving motor II is arranged on the motor fixing frame II, and the grinding ring is sleeved on the output shaft of the driving motor II.

Preferably, the anti-drop assembly comprises: the U-shaped fixing frame is fixedly connected with the fixing block, the hinging seat is fixedly connected with the inner wall of the U-shaped cavity of the U-shaped fixing frame, one end of the telescopic rod is hinged with the hinging seat, the other end of the telescopic rod is hinged with the second connecting rod, and a first connecting spring is fixedly connected between the two groups of telescopic rods.

Preferably, two groups of second limiting sliding grooves are symmetrically formed in two sides of the U-shaped rod of the U-shaped fixing frame, two ends of the supporting plate slidingly extend into the two groups of second limiting sliding grooves, a hollow buffer column is fixedly connected to one side, close to the inner wall of the U-shaped cavity of the U-shaped fixing frame, of the supporting plate, and a third limiting ring groove is formed in one side, far away from the inner wall of the U-shaped cavity of the U-shaped fixing frame, of the supporting plate.

Preferably, the thread sleeve and the second fixing clamp are fixedly connected with the supporting plate, the fixing bolt is in threaded connection with the thread sleeve, the first fixing clamp is fixedly connected with the lower end of the fixing bolt, and one end, close to the supporting plate, of the first fixing clamp movably extends into the third limiting ring groove.

Preferably, two groups of guide sliding blocks are movably arranged in the hollow buffer column, a connecting spring II is fixedly connected between the two groups of guide sliding blocks, one end of a second connecting rod extends into the hollow buffer column and is hinged with the guide sliding blocks, and the other end of the second connecting rod is hinged with the inner wall of the U-shaped cavity of the U-shaped fixing frame.

Compared with the prior art, the utility model has the beneficial effects that:

when the test device is used, the test workpiece is fixed through the anti-drop component, then the mounting base is used for testing any one of flexibility, three-point bending and pipe strength, at the moment, the test driving component is started to be used for carrying out flexibility or three-point bending test on the test workpiece or driving the test workpiece to descend by one of the two groups of air cylinders, and the strength test component is started to be used for carrying out pipe strength test on the test workpiece, so that test data can be displayed and recorded through the data display.

The utility model integrates flexibility, three-point bending and pipe strength test, is convenient for testing different sections of strength of the test workpiece, and provides scientific basis for pipe design parameters through testing different strengths of the test workpiece.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of a test case according to the present utility model;

fig. 3 is an enlarged schematic view of the structure a in fig. 2 according to the present utility model.

In the figure: 1. a mounting base; 2. a data display; 3. a test box; 4. a support frame; 5. driving a first motor; 6. a motor fixing frame I; 7. a threaded rod; 8. an L-shaped fixing frame; 9. a driving block; 10. a limit rod; 11. anti-slip ring; 12. a first connecting spring; 13. a first link; 14. a pressure sensor; 15. testing a workpiece; 16. an anti-drop assembly; 17. a fixed block; 18. a first cylinder; 19. a first limiting chute; 20. a second cylinder; 21. an L-shaped fixed block; 22. a sanding ring; 23. a second driving motor; 24. a motor fixing frame II; 25. a hinge base; 26. a U-shaped fixing frame; 27. a telescopic rod; 28. a limiting chute II; 29. a second link; 30. a support plate; 31. a fixing bolt; 32. a thread sleeve; 33. a limit ring groove III; 34. fixing a first clamping hand; 35. fixing a second clamping hand; 36. a guide slide block; 37. a hollow buffer column; 38. and a second connecting spring.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the embodiments may be combined with each other, but it is necessary to base that a person skilled in the art can implement the combination of technical solutions, when the combination of technical solutions contradicts or cannot be implemented, should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

Example 1

The embodiment of the utility model provides a three-in-one instrument for testing the flexibility, three-point bending and pipe strength of a catheter guide wire, which is shown in fig. 1-2 and comprises the following components: the test box comprises an installation base 1, wherein a test box body 3 is installed at the top of the installation base 1, a support frame 4 and a motor fixing frame II 24 are fixedly connected to the bottom of the inner wall of the test box body 3, a test driving assembly is installed on the support frame 4, an intensity test assembly is installed on the motor fixing frame II 24, two groups of first limiting sliding grooves 19 are symmetrically arranged at the bottom of the inner wall of the test box body 3, two groups of first air cylinders 18 are movably arranged in the two groups of first limiting sliding grooves 19 respectively, and the same anti-falling assemblies 16 are arranged at the tops of the two groups of first air cylinders 18.

Preferably, the first cylinder 18 may be of the type: ADN-S-63-5-A-P-A\ADN-S-63-10-A-P-A\ADN-S-63-15-I-P-A.

The working principle of the technical scheme has the beneficial effects that: when the test device is used, the test workpiece 15 is fixed through the anti-falling assembly 16, then the mounting base 1 selects any one of flexibility, three-point bending and pipe strength for testing, at the moment, the test driving assembly is started to be used for carrying out flexibility or three-point bending test on the test workpiece 15 or the two groups of cylinders 18 drive the test workpiece 15 to descend.

The utility model integrates flexibility, three-point bending and pipe strength test, is convenient for testing different sections of strength of the test workpiece 15, and provides scientific basis for pipe design parameters through testing different strengths of the test workpiece.

Example 2

On the basis of embodiment 1, as shown in fig. 1, a data display 2 is mounted on top of a mounting base 1, and the data display 2 and a test box 3 are electrically connected.

The beneficial effects of the technical scheme are as follows: the test results can be displayed by the setting of the data display 2.

Example 3

Referring to fig. 2, with reference to any one of embodiments 1-2, the test driving assembly includes: the first motor fixing frame 6 is fixedly connected with the support frame 4, the first motor fixing frame 6 is embedded with the first driving motor 5, the output shaft of the first driving motor 5 movably penetrates through the support frame 4, and the output shaft of the first driving motor 5 is fixedly connected with the threaded rod 7.

Preferably, the L-shaped fixing frame 8 is fixedly connected with the supporting frame 4, the lower end of the threaded rod 7 is movably connected with the horizontal section of the L-shaped fixing frame 8, the driving block 9 is in threaded sleeve connection with the outer wall of the threaded rod 7, the upper end of the first connecting rod 13 is fixedly connected with the driving block 9, and the pressure sensor 14 is arranged at the lower end of the first connecting rod 13.

Preferably, the upper end of the limiting rod 10 is fixedly connected with the supporting frame 4, the lower end of the limiting rod 10 movably penetrates through the driving block 9, and an anti-drop ring 11 is fixedly connected with the limiting rod.

Preferably, the strength test assembly comprises: the motor fixing frame II 24 and two groups of L-shaped fixing blocks 21, the motor fixing frame II 24 and two groups of L-shaped fixing blocks 21 are fixedly connected to the bottom of the inner wall of the test box body 3, the two groups of L-shaped fixing blocks 21 are symmetrically arranged on two sides of the motor fixing frame II 24, the cylinder II 20 is fixedly connected with the L-shaped fixing blocks 21, the output end of the cylinder II 20 is abutted to the side wall of the cylinder I18, the fixing block 17 is fixedly connected with the output end of the cylinder I18, the driving motor II 23 is mounted on the motor fixing frame II 24, and the frosting ring 22 is sleeved on the output shaft of the driving motor II 23.

Preferably, the type of the second cylinder 20 may be: ADN-S-63-5-A-P-A\ADN-S-63-10-A-P-A\ADN-S-63-15-I-P-A.

Preferably, the first driving motor 5 and the second driving motor 23 may have the following types: any one of the three-friendly motor Y300/Y31/Y32.

Preferably, the pressure sensor 14 may be of the type: RP-S40-ST\Uni-111\MD30-60@50 kg.

The working principle of the technical scheme has the beneficial effects that:

when the flexibility test is carried out, the first driving motor 5 is started to drive the threaded rod 7 to rotate, so that the driving block 9 drives the first connecting rod 13 to move downwards until the pressure sensor 14 is abutted against the test workpiece 15, and after the preset strength is reached, the first driving motor 5 is closed, the second driving motor 20 is started to drive the first driving motor 18 to move in the same/opposite direction, and test data of the test workpiece 15 are transmitted back to the data display 2;

when a three-point bending test is performed, the center point of the test workpiece 15 is moved to be right below the pressure sensor 14 through the two groups of cylinders II 20, and then the driving motor I5 is started to drive the threaded rod 7 to rotate, so that the driving block 9 drives the first connecting rod 13 to move downwards until the pressure sensor 14 is abutted against the test workpiece 15 and pressure is continuously applied, and test data of the test workpiece 15 are transmitted back to the data display 2;

when the strength test of the pipe body is carried out, the second driving motor 23 is started to drive the grinding ring 22 to rotate, at the moment, the second cylinder group 20 drives the test workpiece 15 to descend and abut against the grinding ring 22, and the second cylinder group 20 is started to drive the first cylinder group 18 to move in the same/opposite directions, so that the strength test of the pipe body of any position of the test workpiece 15 is realized.

Wherein, setting up of gag lever post 10 plays the guide effect to drive piece 9, and the setting of anticreep ring 11 can prevent drive piece 9 slippage.

Example 4

Referring to fig. 2 to 3, with reference to any one of embodiments 1 to 3, the anti-slip assembly 16 includes: the U type mount 26, U type mount 26 and fixed block 17 fixed connection, articulated seat 25 and the U die cavity inner wall fixed connection of U type mount 26, telescopic link 27 one end is articulated with articulated seat 25, and the telescopic link 27 other end is articulated with second connecting rod 29, fixedly connected with coupling spring one 12 between two sets of telescopic links 27.

Preferably, two groups of second limiting sliding grooves 28 are symmetrically formed in two sides of the U-shaped rod of the U-shaped fixing frame 26, two ends of the supporting plate 30 slidingly extend into the two groups of second limiting sliding grooves 28, one side, close to the inner wall of the U-shaped cavity of the U-shaped fixing frame 26, of the supporting plate 30 is fixedly connected with a hollow buffer column 37, and one side, far away from the inner wall of the U-shaped cavity of the U-shaped fixing frame 26, of the supporting plate 30 is provided with a third limiting ring groove 33.

Preferably, the screw sleeve 32 and the second fixing clamp 35 are fixedly connected with the supporting plate 30, the fixing bolt 31 is in threaded connection with the screw sleeve 32, the first fixing clamp 34 is fixedly connected with the lower end of the fixing bolt 31, and one end, close to the supporting plate 30, of the first fixing clamp 34 movably extends into the third limiting ring groove 33.

Preferably, two groups of guide sliding blocks 36 are movably arranged in the hollow buffer column 37, a connecting spring II 38 is fixedly connected between the two groups of guide sliding blocks 36, one end of the second connecting rod 29 extends into the hollow buffer column 37 and is hinged with the guide sliding blocks 36, and the other end of the second connecting rod 29 is hinged with the inner wall of the U-shaped cavity of the U-shaped fixing frame 26.

Preferably, the same pressure sensor 14 is also mounted on the second stationary grip 35.

The working principle of the technical scheme has the beneficial effects that: when the test workpiece 15 with different sizes is selected for testing, after the end head of the test workpiece 15 is placed on the second fixing clamp 35, the fixing bolt 31 is screwed to drive the first fixing clamp 34 to descend and clamp the test workpiece 15, at the moment, when the flexibility, three-point bending and pipe strength of the test workpiece 15 are tested, the test workpiece 15 is deformed, so that the support plate 30 is repeatedly pulled along the second limiting chute 28, at the moment, the two groups of second connecting rods 29 stretch/compress the second connecting springs 38 through the guide sliding blocks 36 to help absorb the tensile force generated by deformation of the test workpiece 15, the two groups of telescopic rods 27 and the first connecting springs 12 play a role in supporting the second connecting rods 29 and dispersing the pressure, and the pressure sensor arranged on the second fixing clamp 35 also transmits dynamic data to the data display 2 while the support plate 30 repeatedly moves, so as to supplement the flexibility, three-point bending and pipe strength data of the test workpiece 15.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a three unification test instrument of pipe seal wire pliability, three curved, body intensity which characterized in that:

comprising the following steps: install base (1), install test box (3) at installation base (1) top, test box (3) inner wall bottom fixedly connected with support frame (4) and motor mount second (24), install test drive assembly on support frame (4), install intensity test assembly on motor mount second (24), test box (3) inner wall bottom symmetry is equipped with two sets of limit spout one (19), and two sets of cylinder one (18) are movably located in two sets of limit spout one (19) respectively, two sets of cylinder one (18) tops all are equipped with the same anticreep subassembly (16).

2. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 1, wherein:

the top of the mounting base (1) is provided with a data display (2), and the data display (2) is electrically connected with the test box body (3).

3. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 1, wherein:

the test drive assembly includes: the motor fixing frame I (6), motor fixing frame I (6) and support frame (4) fixed connection, embedded driving motor I (5) on motor fixing frame I (6), driving motor I (5) output shaft activity runs through support frame (4), and fixedly connected with threaded rod (7) on driving motor I (5) output shaft.

4. A catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument as claimed in claim 3, wherein:

the L-shaped fixing frame (8) is fixedly connected with the supporting frame (4), the lower end of the threaded rod (7) is movably connected with the horizontal section of the L-shaped fixing frame (8), the driving block (9) is in threaded sleeve connection with the outer wall of the threaded rod (7), the upper end of the first connecting rod (13) is fixedly connected with the driving block (9), and the pressure sensor (14) is arranged at the lower end of the first connecting rod (13).

5. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 4, wherein:

the upper end of the limiting rod (10) is fixedly connected with the supporting frame (4), the lower end of the limiting rod (10) movably penetrates through the driving block (9), and an anti-drop ring (11) is fixedly connected.

6. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 1, wherein:

the strength test assembly includes: motor mount two (24) and two sets of L type fixed blocks (21), motor mount two (24) and two sets of L type fixed blocks (21) are all fixed connection in test box (3) inner wall bottom, and motor mount two (24) both sides are located to two sets of L type fixed blocks (21) symmetry, cylinder two (20) and L type fixed block (21) fixed connection, and cylinder two (20) output and cylinder one (18) lateral wall butt, cylinder one (18) output fixedly connected with fixed block (17), install driving motor two (23) on motor mount two (24), and cup joint dull polish ring (22) on driving motor two (23) output shaft.

7. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 1, wherein:

the anti-drop assembly (16) comprises: the U-shaped fixing frame (26), U-shaped fixing frame (26) and fixed block (17) fixed connection, articulated seat (25) and U-shaped die cavity inner wall fixed connection of U-shaped fixing frame (26), telescopic link (27) one end is articulated with articulated seat (25), telescopic link (27) other end and second connecting rod (29) are articulated, fixedly connected with coupling spring (12) between two sets of telescopic link (27).

8. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 7, wherein:

two groups of limiting sliding grooves II (28) are symmetrically formed in two sides of a U-shaped rod of the U-shaped fixing frame (26), two ends of the supporting plate (30) slidingly extend into the two groups of limiting sliding grooves II (28), one side, close to the inner wall of a U-shaped cavity of the U-shaped fixing frame (26), of the supporting plate (30) is fixedly connected with a hollow buffer column (37), and one side, far away from the inner wall of the U-shaped cavity of the U-shaped fixing frame (26), of the supporting plate (30) is provided with a limiting ring groove III (33).

9. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 8, wherein:

the screw sleeve (32) and the fixed clamp second (35) are fixedly connected with the supporting plate (30), the fixed bolt (31) is in threaded connection with the screw sleeve (32), the fixed clamp first (34) is fixedly connected with the lower end of the fixed bolt (31), and one end, close to the supporting plate (30), of the fixed clamp first (34) movably extends into the limit ring groove third (33).

10. The catheter guidewire flexibility, three-point bend, tube strength three-in-one test instrument of claim 8, wherein:

two groups of guide sliding blocks (36) are movably arranged in the hollow buffer column (37), a connecting spring II (38) is fixedly connected between the two groups of guide sliding blocks (36), one end of a second connecting rod (29) extends into the hollow buffer column (37) and is hinged with the guide sliding blocks (36), and the other end of the second connecting rod (29) is hinged with the inner wall of the U-shaped cavity of the U-shaped fixing frame (26).