CN216525147U

CN216525147U - Medical needle intensity and toughness test fixture

Info

Publication number: CN216525147U
Application number: CN202123083773.5U
Authority: CN
Inventors: 孙社委
Original assignee: Jinan Walande Instrument Co ltd
Current assignee: Jinan Walande Instrument Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-05-13
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a medical needle strength and toughness testing clamp which comprises a machine body and a lower clamp seat, wherein a motor is installed inside the machine body, a driving bevel gear is installed on the left side of the motor, a driven bevel gear is arranged on the right side of the driving bevel gear, a lead screw is screwed on the inner side of the driven bevel gear, the lower clamp seat is installed above the machine body, locking bolts are screwed on the left end and the right end of the lower clamp seat, an adjusting knob is arranged on the right side of the lower clamp seat, a clamping head is arranged above the lower clamp seat, a containing drawer is arranged below the adjusting knob, a rotary disc is fixed behind the clamping head, an installation seat is arranged behind the rotary shaft, and a force sensor is fixed above an upper clamp support. This medical needle intensity and toughness test fixture compares with current ordinary test fixture, through motor and control panel, controls the device automated inspection medical needle intensity and toughness, avoids the error that manual operation produced.

Description

Medical needle intensity and toughness test fixture

Technical Field

The utility model relates to the technical field of instruments and meters, in particular to a medical needle strength and toughness testing clamp.

Background

The set of clamp is mainly a device for detecting the puncture force and rigidity of the needle point of the medical needle, medical instruments need to meet certain requirements on the puncture force and rigidity of the medical needle, the set of clamp is specially designed and manufactured for the experiment, double-drive vertical up-and-down motion is adopted, a force value sensor is worn on a screw rod, an aluminum foil is arranged on the clamp, a corresponding force value is measured by puncturing the aluminum foil, rigidity testing is that the medical needle is driven to move up and down by the up-and-down motion of the screw rod, a plate on the clamp is touched, and the medical needle point is not deformed under the measured force value.

General test fixture detects through manual operation, because manual operation, produces the error easily, can not be fine satisfies people's user demand, to above-mentioned condition, carries out technological innovation on current test fixture basis.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a medical needle strength and toughness test fixture, which aims to solve the problems that the general test fixture provided in the background art is manually operated to detect, and due to manual operation, errors are easily generated and the use requirements of people cannot be well met.

In order to achieve the purpose, the utility model provides the following technical scheme: a medical needle strength and toughness test fixture comprises a machine body and a lower fixture seat, wherein a motor is arranged in the machine body, and the left side of the motor is provided with a driving bevel gear, the right side of the driving bevel gear is provided with a driven bevel gear, and the inner side of the driven helical gear is screwed with a screw rod, the lower clamp seat is arranged above the machine body, the left end and the right end of the lower clamp seat are screwed with locking bolts, the right side of the lower clamp seat is provided with an adjusting knob, a clamping head is arranged above the lower clamp seat, a containing drawer is arranged below the adjusting knob, a rotary disc is fixed behind the clamping head, a rotating shaft is arranged at the rear part of the rotating disc, a mounting seat is arranged at the rear part of the rotating shaft, an upper clamp bracket is arranged above the mounting seat, a force sensor is fixed above the upper clamp support, and a control panel is arranged behind the right side of the force sensor.

Preferably, the driving bevel gear is meshed with the driven bevel gear, and the driven bevel gear is in threaded connection with the screw rod.

Preferably, the lower clamp seat is in threaded connection with the locking bolts, and the locking bolts are connected with each other about the central axis of the lower clamp seat.

Preferably, the rotating disc and the mounting seat form a rotating structure through a rotating shaft, and the rotating disc and the clamping head form an integrated structure.

Preferably, the upper clamp support is fixedly connected with the force sensor, and the force sensor is in threaded connection with the screw rod.

Preferably, a drawing structure is formed between the storage drawer and the machine body, and the front surface of the machine body is attached to the rear surface of the control panel.

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

1. according to the utility model, through the arrangement of the motor, the driving bevel gear, the driven bevel gear, the lower clamp seat, the locking bolt, the screw rod and the clamping head, automatic measurement is carried out through the motor, errors caused by manual operation are avoided, the motor is started, and the screw rod is driven to move downwards through the driving bevel gear and the driven bevel gear, so that the medical needle in the clamping head is contacted with the aluminum foil and the plate on the lower clamp seat, and the strength and the toughness of the medical needle are detected.

Drawings

FIG. 1 is a schematic sectional view of the present invention in a front view;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a right view of the structure of the present invention.

In the figure: 1. a body; 2. a motor; 3. a driving bevel gear; 4. a driven helical gear; 5. a lower clamp base; 6. locking the bolt; 7. a screw rod; 8. rotating the disc; 9. a clamping head; 10. an upper clamp bracket; 11. a force sensor; 12. a control panel; 13. a storage drawer; 14. adjusting a knob; 15. a rotating shaft; 16. and (7) mounting a seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a medical needle strength and toughness test fixture comprises a machine body 1 and a lower fixture seat 5, wherein a motor 2 is installed inside the machine body 1, a driving helical gear 3 is installed on the left side of the motor 2, a driven helical gear 4 is arranged on the right side of the driving helical gear 3, a screw rod 7 is screwed on the inner side of the driven helical gear 4, the driving helical gear 3 is meshed with the driven helical gear 4, the driven helical gear 4 is in threaded connection with the screw rod 7, errors generated by manual operation are avoided by the motor 2, the driving helical gear 3, the driven helical gear 4, the lower fixture seat 5 and a locking bolt 6, the screw rod 7 and a clamping head 9 through the arrangement of the motor 2, the motor 2 is started, the screw rod 7 is driven to move downwards through the driving helical gear 3 and the driven helical gear 4, so that a medical needle in the clamping head 9 is contacted with an aluminum foil and a plate on the lower fixture seat 5, detecting the strength and toughness of the medical needle;

the lower clamp seat 5 is arranged above the machine body 1, the left end and the right end of the lower clamp seat 5 are screwed with locking bolts 6, the lower clamp seat 5 is in threaded connection with the locking bolts 6, the locking bolts 6 are connected with each other about the central axis of the lower clamp seat 5, the right side of the lower clamp seat 5 is provided with an adjusting knob 14, the upper part of the lower clamp seat 5 is provided with a clamping head 9, the lower part of the adjusting knob 14 is provided with a containing drawer 13, a drawing structure is formed between the containing drawer 13 and the machine body 1, the front surface of the machine body 1 is attached to the rear surface of a control panel 12, the rear part of the clamping head 9 is fixed with a rotary disc 8, the rear part of the rotary disc 8 is provided with a rotating shaft 15, the rotary disc 8 and a mounting seat 16 form a rotating structure through the rotating shaft 15, the rotary disc 8 and the clamping head 9 are integrated, the mounting seat 16 is arranged behind the rotating shaft 15, and the upper clamp support 10 is arranged above the mounting seat 16, a force sensor 11 is fixed above the upper clamp support 10, a control panel 12 is arranged behind the right side of the force sensor 11, the upper clamp support 10 is fixedly connected with the force sensor 11, and the force sensor 11 is in threaded connection with the screw rod 7.

The working principle is as follows: when the medical needle strength and toughness testing clamp is used, firstly, an aluminum foil is placed on a lower clamp seat 5, locking bolts 6 on two sides are rotated to fixedly clamp the aluminum foil, a containing drawer 13 is opened, a medical needle is taken out, the medical needle is placed into a clamping head 9, the locking bolts 6 are rotated to clamp the medical needle, a motor 2 is started to drive a driving bevel gear 3 to rotate, the driving bevel gear 3 is meshed with a driven bevel gear 4 to drive the driven bevel gear 4 to rotate, the driven bevel gear 4 is in threaded connection with a screw rod 7, the screw rod 7 moves downwards, the medical needle in the clamping head 9 is in contact with the aluminum foil on the lower clamp seat 5, a corresponding force value is measured by recording the punctured aluminum foil through a force sensor 11, the aluminum foil is taken out and a plate is replaced, the needle point of the medical needle is tested not to deform under the strength value, the model number of the force sensor 11 is JHBM-H1, the working principle of the medical needle strength and toughness testing clamp is that.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a medical needle intensity and toughness test fixture, includes organism (1) and lower anchor clamps seat (5), its characterized in that: the novel clamp is characterized in that a motor (2) is mounted inside the machine body (1), a driving bevel gear (3) is mounted on the left side of the motor (2), a driven bevel gear (4) is arranged on the right side of the driving bevel gear (3), a lead screw (7) is screwed on the inner side of the driven bevel gear (4), a lower clamp seat (5) is mounted above the machine body (1), locking bolts (6) are screwed on the left end and the right end of the lower clamp seat (5), an adjusting knob (14) is arranged on the right side of the lower clamp seat (5), a clamping head (9) is arranged above the lower clamp seat (5), a storage drawer (13) is arranged below the adjusting knob (14), a rotary disc (8) is fixed at the rear of the clamping head (9), a rotating shaft (15) is arranged behind the rotating disc (8), a mounting seat (16) is arranged behind the rotating shaft (15), and an upper clamp support (10) is arranged above the mounting seat (16), a force sensor (11) is fixed above the upper clamp support (10), and a control panel (12) is arranged behind the right side of the force sensor (11).

2. The medical needle strength and toughness test fixture of claim 1, wherein: the driving bevel gear (3) is meshed with the driven bevel gear (4), and the driven bevel gear (4) is in threaded connection with the screw rod (7).

3. The medical needle strength and toughness test fixture of claim 1, wherein: the lower clamp seat (5) is in threaded connection with the locking bolts (6), and the locking bolts (6) are connected with each other about the central axis of the lower clamp seat (5).

4. The medical needle strength and toughness test fixture of claim 1, wherein: the rotating disc (8) and the mounting seat (16) form a rotating structure through a rotating shaft (15), and the rotating disc (8) and the clamping head (9) are of an integrated structure.

5. The medical needle strength and toughness test fixture of claim 1, wherein: the upper clamp support (10) is fixedly connected with the force sensor (11), and the force sensor (11) is in threaded connection with the screw rod (7).

6. The medical needle strength and toughness test fixture of claim 1, wherein: a drawing structure is formed between the storage drawer (13) and the machine body (1), and the front surface of the machine body (1) is attached to the rear surface of the control panel (12).