Tensile testing machine for medical instrument

Abstract

The utility model relates to the field of tension testing machines, in particular to a tension testing machine for medical instruments. The technical problem is that a tension test structure is damaged and the tension effect is reduced due to the fact that a tension test machine generates large springback after tension and generates a gap to the tension test structure. According to the technical scheme, the tensile force testing machine for the medical instrument comprises a damping disc, a control panel, a static tensile force assembly, a guide tensile force testing assembly and a dynamic tensile force assembly; according to the difference of mutual cooperation of a stress frame and a tension frame in the prior art, firstly, according to the difference of the medical gloves and nasal oxygen cannula products needing to be tested, annular installation is carried out through an installation sleeve on a static tension assembly, positioning connection is carried out through a clamping hole, and due to the fact that a tension module and the static tension assembly are arranged to be the same in structure, bidirectional installation can be carried out; and along with the pulling force stroke, the materials sequentially pass through the guide wheels and the damping blocks, and it is guaranteed that the reciprocating guide pulling force is stable.

Description

Technical Field

[0001] The utility model relates to the field of tension testing machines, in particular to a tension testing machine for medical equipment. Background Art

[0002] The tensile testing machine for medical devices is an intelligent testing equipment. It is a mechanical force testing machine that can perform mechanical property tests such as static load, stretching, compression, bending, shearing, tearing, and peeling on various materials. It is mainly used to test the breaking force, connection firmness, peel strength, connection firmness of catheters and catheter joints, and connection firmness of various components of medical needles such as blood collection needles and injection needles. In the process of tensile testing, the existing tensile testing machine uses a force frame and a tensile frame to cooperate with each other. Due to the large rebound after tension, a gap is generated in the tensile test structure, causing damage to the tensile test structure and reducing the tensile effect. Therefore, we proposed a tensile testing machine for medical devices to solve the above problems. Utility Model Content

[0003] In order to overcome the problem that the tensile testing machine produces a large rebound after pulling, which creates a gap in the tensile testing structure, damages the tensile testing structure, and reduces the tensile effect.

[0004] The technical solution of the utility model is: a tensile testing machine for medical devices, including a shock absorbing plate, a control panel, a static tensile component, a guide tensile test component and a dynamic tensile component; the shock absorbing plate is provided with a control panel for controlling the data feedback of the guide tensile test component and the dynamic tensile component, the guide tensile test component is provided with a dynamic tensile component for pulling medical gloves and nasal oxygen tube products, and a static tensile component for pulling, positioning and installing medical gloves and nasal oxygen tube products is correspondingly provided below the dynamic tensile component.

[0005] Preferably, the installation sleeve on the static tension component is used for circumferential installation, and the connection is positioned by the snap-in hole. Since the tension module has the same structural setting as the static tension component, it can be installed in both directions, which increases the tension installation adaptability of the material and facilitates tension testing. After the material is installed, the hydraulic cylinder drives the hydraulic rod to drive the guide rod to move along the guide groove along the tension, and the reciprocating tension stroke passes through the guide wheel and the shock-absorbing block in sequence during the tension stroke to ensure the stability of the reciprocating guide tension.

[0006] Preferably, the static tension assembly includes a balancing plate, a support column, an induction light, a connecting plate, a balancing ball, a balancing rod and a mounting sleeve. The connecting plate is connected to the balancing plate through the support column. A balancing rod is arranged around the lower outer end of the connecting plate. A balancing ball is arranged in the center of the connecting plate. When the material reaches its limit, the excessive rebound reaction is reflected on the vibration sensor, which is transmitted and displayed through the induction light, and the static tension assembly is pulled synchronously.

[0007] Preferably, a vibration sensor is provided at one end of the balance bar away from the connecting disk, and an induction light is provided on the vibration sensor. A mounting sleeve is provided around the upper edge of the connecting disk, and a snap-in hole is provided on the mounting sleeve. The mounting sleeve on the static tension component is used for circumferential installation, and the snap-in hole is used for positioning and connection.

[0008] Preferably, the guide tension test assembly includes a vertical box, a positioning rod, a hydraulic cylinder, a hydraulic rod, a connecting sleeve rod, a shock-absorbing block, a guide pulley and a longitudinal sleeve. A relatively vertical positioning rod is provided at the rear end of the vertical box, and a connecting sleeve rod that is firmly connected to each other is provided between the positioning rod and the vertical box. A hydraulic rod that drives the tension assembly is provided in the center of the vertical box, and a hydraulic cylinder is provided at the upper end of the hydraulic rod. After the material is installed, the hydraulic cylinder drives the hydraulic rod to drive the guide rod to move along the guide groove along the tension.

[0009] Preferably, both ends of the vertical box are provided with a longitudinal sleeve, a positioning slide groove is opened in the middle of the longitudinal sleeve, a shock-absorbing block is provided along the front end of the vertical box, a guide groove is opened in the middle of the shock-absorbing block, and guide pulleys are provided on both sides of the inner wall of the guide groove. As the pulling force travels, it passes through the guide wheel and the shock-absorbing block in turn to ensure the stability of the reciprocating guide pulling force.

[0010] Preferably, the dynamic pulling assembly includes a guide rod, a flashing light, a connecting block, a counterweight, a clamping ring frame, a horizontal column and a pulling module. The pulling module has the same structural arrangement as the static pulling assembly. A pulling rod is passed through one end of the guide rod. A torque tensioner is provided at the upper end of the pulling rod. A flashing light is provided at the upper end of the torque tensioner. As the pulling force of the torque tensioner is too large, the flashing light above flashes differently to facilitate timely observation.

[0011] Preferably, both ends of the guide rod are provided with clamping ring frames, the surface of the clamping ring frame is provided with a horizontal column, one end of the clamping ring frame is provided with a connecting block, the outer end of the connecting block is provided with a counterweight block, and the inner side of the connecting block is provided with a sliding block. Through the counterweight block, the overall outer side counterweight can be increased to improve the overall stability.

[0012] Beneficial effects of the utility model:

[0013] 1. Unlike the previous use of force-bearing frames and tension frames to cooperate with each other, the medical gloves and nasal oxygen tube products that need to be tested are first installed in an annular direction using the mounting sleeve on the static tension component, and are positioned and connected by the snap-in hole. Since the tension module has the same structural setting as the static tension component, it can be installed in both directions, increasing the tension installation adaptability of the material and facilitating tension testing. After the material is installed, the hydraulic cylinder drives the hydraulic rod to drive the guide rod to move along the guide groove along the tension, and the reciprocating tension stroke. As the tension stroke, it passes through the guide wheel and the shock-absorbing block in turn to ensure the stability of the reciprocating guide tension.

[0014] 2. As the tension of the torque tensioner is too large, the flashing light above will flash differently, which is convenient for timely observation. When the material reaches its limit, the excessive rebound will be reflected on the vibration sensor and displayed through the induction light. Synchronously, the static tension component will apply tension, and the clamping ring frames on both sides of the guide rod will slide along the positioning groove on the sleeve through the slider on the connecting block to ensure the stability of the reciprocating tension. The balance state of the horizontal column can be observed to avoid deviation and make timely corrections. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of a static tension component of the utility model;

[0017] Figure 3 It is a schematic diagram of the guide tension test assembly of the utility model;

[0018] Figure 4 It is a schematic diagram of the dynamic pulling force component of the utility model.

[0019] Explanation of the reference numerals: 1. shock absorbing plate; 2. control panel; 3. static tension assembly; 4. guide tension test assembly; 5. dynamic tension assembly; 301. balance plate; 302. support column; 303. induction lamp; 304. connecting plate; 305. balance ball; 306. balance bar; 307. mounting sleeve; 401. vertical box; 402. positioning rod; 403. hydraulic cylinder; 404. hydraulic rod; 405. connecting sleeve rod; 406. guide groove; 407. guide pulley; 408. along sleeve; 409. positioning slide groove; 410. shock absorbing block; 501. guide rod; 502. flashing lamp; 503. connecting block; 504. counterweight block; 505. clamping ring frame; 506. horizontal column; 507. tension module. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-2 The utility model provides an embodiment: a tensile testing machine for medical devices, comprising a shock absorbing plate 1, a control panel 2, a static tensile component 3, a guide tensile test component 4 and a dynamic tensile component 5; the shock absorbing plate 1 is provided with a control panel 2 for controlling data feedback of the guide tensile test component 4 and the dynamic tensile component 5, the guide tensile test component 4 is provided with a dynamic tensile component 5 for pulling medical gloves and nasal oxygen tube products, and a static tensile component 3 for pulling, positioning and installing medical gloves and nasal oxygen tube products is correspondingly provided below the dynamic tensile component 5.

[0022] See also Figure 1-3In this embodiment, the static tension component 3 includes a balancing disk 301, a support column 302, a sensor lamp 303, a connecting disk 304, a balancing ball 305, a balancing rod 306 and a mounting sleeve 307. The connecting disk 304 is connected to the balancing disk 301 through the support column 302. The lower outer end of the connecting disk 304 is surrounded by a balancing rod 306. The center of the connecting disk 304 is provided with a balancing ball 305. When the material reaches the limit, the excessive rebound is reflected on the vibration sensor (the vibration sensor model is SW-420), and the sensor lamp 303 is used for transmission and display. Synchronously with the static tension component 3, a vibration sensor is provided at one end of the balancing rod 306 away from the connecting disk 304. The sensor lamp 303 is provided on the vibration sensor. The upper edge of the connecting disk 304 is surrounded by a mounting sleeve 307. The mounting sleeve 307 is provided with a clamping hole. The mounting sleeve 307 on the static tension component 3 is used for circumferential installation, and the clamping hole is used for positioning and connection.

[0023] See also Figure 2-4 In this embodiment, the guide tension test assembly 4 includes a vertical box 401, a positioning rod 402, a hydraulic cylinder 403, a hydraulic rod 404, a connecting rod 405, a shock absorbing block 410, a guide pulley 407 and a straight sleeve 408. The rear end of the vertical box 401 is provided with a relatively vertical positioning rod 402, and a connecting rod 405 is provided between the positioning rod 402 and the vertical box 401. A driving tension hydraulic rod 404 for driving the dynamic tension assembly 5 is provided in the center of the vertical box 401, and a hydraulic cylinder 403 is provided at the upper end of the hydraulic rod 404. 3. After the material is installed, the hydraulic cylinder 403 drives the hydraulic rod 404 to drive the guide rod 501 to move along the guide groove 406 along the tension. Both ends of the vertical box 401 are provided with a sleeve 408, and a positioning groove 409 is provided in the middle of the sleeve 408. A shock-absorbing block 410 is provided along the front end of the vertical box 401, and a guide groove 406 is provided in the middle of the shock-absorbing block 410. Guide pulleys 407 are provided on both sides of the inner wall of the guide groove 406. As the tension travels, it passes through the guide wheel and the shock-absorbing block 410 in turn to ensure the stability of the reciprocating guide tension.

[0024] See also Figure 3-4In this embodiment, the dynamic tension component 5 includes a guide rod 501, a flashing light 502, a connecting block 503, a counterweight 504, a clamping ring frame 505, a horizontal column 506 and a tension module 507. The tension module 507 has the same structural arrangement as the static tension component 3. A tension rod is passed through one end of the guide rod 501, and a torque tensioner is provided at the upper end of the tension rod. A flashing light 502 is provided at the upper end of the torque tensioner. As the tension of the torque tensioner is too large, the flashing light 502 above flashes differently, which is convenient for timely observation. Clamping ring frames 505 are provided at both ends of the guide rod 501. A horizontal column 506 is provided on the surface of the clamping ring frame 505. A connecting block 503 is provided at one end of the clamping ring frame 505. A counterweight 504 is provided at the outer end of the connecting block 503. A slider is provided on the inner side of the connecting block 503. The counterweight 504 can increase the overall outer counterweight and improve the overall stability.

[0025] When working, the appropriate parameters are adjusted in advance through the control panel 2 to start the dynamic tension component 5 and the static tension component 3. According to the difference between the medical gloves and the nasal oxygen tube products to be tested, the static tension component 3 is installed in an annular direction using the mounting sleeve 307, and the positioning connection is made by the snap-in hole. The tension module 507 and the static tension component 3 box are installed in a bidirectional manner;

[0026] After the material is installed, the hydraulic cylinder 403 drives the hydraulic rod 404, driving the guide rod 501 to move along the guide groove 406 along the tension, and the stroke is reciprocating. As the tension stroke, it passes through the guide wheel and the shock absorbing block 410 in sequence;

[0027] As the tension of the moment tensioner is too large, the flashing light 502 above flashes differently, which is convenient for timely observation. When the material reaches the limit, the excessive rebound is reflected on the vibration sensor and transmitted and displayed through the sensor light 303;

[0028] Synchronously with the static tension component 3 applying tension, the clamping ring frames 505 on both sides of the guide rod 501 slide through the slider on the connecting block 503 and the positioning slide groove 409 on the along sleeve 408 to ensure the stability of the reciprocating tension, and the balance state of the horizontal column 506 can be observed.

[0029] Through the above steps, the installation sleeve 307 on the static tension component 3 is used for circumferential installation, and the connection is positioned by the snap-in hole. Since the tension module 507 has the same structural setting as the static tension component 3, it can be installed in both directions, which increases the tension installation adaptability of the material and facilitates the tension test. After the material is installed, the hydraulic cylinder 403 drives the hydraulic rod 404 to drive the guide rod 501 to move along the guide groove 406 along the tension, and the reciprocating tension stroke passes through the guide wheel and the shock-absorbing block 410 in turn during the tension stroke to ensure the stability of the reciprocating guide tension.

[0030] 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, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A tensile testing machine for medical equipment, comprising a shock absorbing plate (1); characterized in that: The invention also comprises a control panel (2), a static tension component (3), a guide tension test component (4) and a dynamic tension component (5); the shock absorbing plate (1) is provided with a control panel (2) for controlling data feedback of the guide tension test component (4) and the dynamic tension component (5); the guide tension test component (4) is provided with a dynamic tension component (5) for pulling medical gloves and nasal oxygen tube products; and a static tension component (3) for pulling, positioning and installing medical gloves and nasal oxygen tube products is provided correspondingly below the dynamic tension component (5).

2. A tensile testing machine for medical devices according to claim 1, characterized in that: The static tension component (3) comprises a balancing plate (301), a support column (302), an induction lamp (303), a connecting plate (304), a balancing ball (305), a balancing rod (306) and a mounting sleeve (307); the connecting plate (304) is connected to the balancing plate (301) via the support column (302); a balancing rod (306) is arranged around the lower outer end of the connecting plate (304); and a balancing ball (305) is arranged at the center of the connecting plate (304).

3. A tensile testing machine for medical devices according to claim 2, characterized in that: A vibration sensor is provided at one end of the balance bar (306) away from the connection plate (304), and a sensing light (303) is provided on the vibration sensor. A mounting sleeve (307) is provided around the upper edge of the connection plate (304), and a clamping hole is provided on the mounting sleeve (307).

4. A tensile testing machine for medical devices according to claim 1, characterized in that: The guide tension test assembly (4) comprises a vertical box (401), a positioning rod (402), a hydraulic cylinder (403), a hydraulic rod (404), a connecting rod (405), a shock absorbing block (410), a guide pulley (407) and a longitudinal sleeve (408). A relatively vertical positioning rod (402) is provided at the rear end of the vertical box (401). A connecting rod (405) which is firmly connected to each other is provided between the positioning rod (402) and the vertical box (401). A hydraulic rod (404) which drives the dynamic tension assembly (5) is provided at the center of the vertical box (401). A hydraulic cylinder (403) is provided at the upper end of the hydraulic rod (404).

5. A tensile testing machine for medical devices according to claim 4, characterized in that: Both ends of the vertical box (401) are provided with a longitudinal sleeve (408), a positioning slide groove (409) is provided in the middle of the longitudinal sleeve (408), a shock absorbing block (410) is provided along the front end of the vertical box (401), a guide groove (406) is provided in the middle of the shock absorbing block (410), and guide pulleys (407) are provided on both sides of the inner wall of the guide groove (406).

6. A tensile testing machine for medical devices according to claim 1, characterized in that: The dynamic tension component (5) comprises a guide rod (501), a flashing light (502), a connecting block (503), a counterweight (504), a clamping ring frame (505), a horizontal column (506) and a tension module (507). The tension module (507) has the same structural arrangement as the static tension component (3). A tension rod is passed through one end of the guide rod (501), a torque tensioner is provided at the upper end of the tension rod, and a flashing light (502) is provided at the upper end of the torque tensioner.

7. A tensile testing machine for medical devices according to claim 6, characterized in that: Both ends of the guide rod (501) are provided with a clamping ring frame (505), the surface of the clamping ring frame (505) is provided with a horizontal column (506), one end of the clamping ring frame (505) is provided with a connecting block (503), the outer end of the connecting block (503) is provided with a counterweight block (504), and the inner side of the connecting block (503) is provided with a sliding block.

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