CN220572484U

CN220572484U - Injector needle tube positioning and conveying mechanism

Info

Publication number: CN220572484U
Application number: CN202320278959.6U
Authority: CN
Inventors: 张擘; 郭伟超; 闵焕娣
Original assignee: Xi'an Boshi Huadu Medical Technology Co ltd; Xian University of Technology; First Affiliated Hospital of Medical College of Xian Jiaotong University
Current assignee: Xi'an Boshi Huadu Medical Technology Co ltd; Xian University of Technology; First Affiliated Hospital of Medical College of Xian Jiaotong University
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2024-03-12
Anticipated expiration: 2033-02-21

Abstract

The utility model discloses a needle tube positioning and conveying mechanism of an injector, wherein a guide rail is fixedly connected between two supporting side plates, two sliding blocks are connected onto the guide rail in a sliding manner, two springs are sleeved on the guide rail, one end of each spring is connected with one supporting side plate, and the other end of each spring is contacted with the adjacent sliding block; a roller support plate is correspondingly arranged below each sliding block, a roller is arranged on a roller shaft, the rollers are concave, and a guide hole can be formed between the two rollers which are in contact with each other; the guide hole is opposite to the needle tube separating mechanism. The utility model can achieve the purpose of automatically feeding the needle cylinder and the needle under the action of the elasticity of the spring. The mechanism can not only effectively avoid the problem of alignment error during manual feeding, but also avoid the problem that a person is stabbed by a needle head during working. The springs are arranged on the two sides of the sliding rail, so that the rollers can clamp the needle tube to be fed, the interval between the two rollers can be elastically adjusted, the device is suitable for needle tubes with different specifications, and the whole mechanism has universality.

Description

Injector needle tube positioning and conveying mechanism

Technical Field

The utility model belongs to the field of medical instrument recovery devices, and particularly relates to a syringe needle tube positioning and conveying mechanism in a syringe needle tube positioning and conveying mechanism.

Background

Syringes are a common medical device that uses needles to withdraw or inject gases or liquids, and may be used in other fields than medicine, such as experiments. The injector is a disposable product no matter what occasion is used, and can not be reused, so that infection is avoided. According to the requirements and regulations of medical departments, the needle heads and needle tubes of medical syringes are destroyed and collected and cannot be thrown and stored everywhere, and the destroyed needle heads and needle tubes are sent to a designated unit for recovery treatment.

At present, the prior art mainly includes manual separation and semi-mechanized separation, wherein manual separation is carried out manual extraction and is destroyed the type with the syringe by nurse or professional, then throw into different collection boxes, and this in-process sharp syringe needle is easy to puncture the hand of separator and is caused the infection, and semi-mechanized separation is with the help of the separator, does not need the contact syringe needle, but still needs manual syringe needle card income separator, carries out manual extraction, and general syringe needle is all less, can cause the stab when the manual delivery, and the potential safety hazard is great. There is a need for a mechanism that is portable and that can automatically deliver syringes. Avoid the excessive contact between the human body and the needle tube, and reduce the possibility of cross infection.

Disclosure of Invention

The utility model aims to provide a needle tube positioning and conveying mechanism of an injector, and aims to solve the problem of low safety degree during separation of needle tubes.

The technical scheme adopted by the utility model is as follows: the needle tube positioning and conveying mechanism of the injector comprises two supporting side plates, a guide rail is fixedly connected between the two supporting side plates, two sliding blocks are connected onto the guide rail in a sliding manner, two springs are sleeved on the guide rail, one end of each spring is connected with one supporting side plate, and the other end of each spring is contacted with the adjacent sliding block; a roller support plate is correspondingly arranged below each sliding block, the roller support plate supports roller shafts which are longitudinally distributed, rollers are arranged on the roller shafts, the rollers are concave, and a guide hole can be formed between two rollers which are in contact with each other; the guide hole is opposite to the needle tube separating mechanism.

The present utility model is also characterized in that,

the two rollers are positioned on the same plane, one roller shaft is used as a driving wheel to be connected with the motor, and when the motor runs, the roller shaft is driven to rotate, so that the rollers are driven to rotate.

The two sliding blocks are adjacent and positioned in the middle of the guide rail.

The end of the roller shaft is provided with a bearing, and the bearing is embedded into the roller supporting plate for positioning.

The roller shaft is also nested with a sleeve, the lower end of the sleeve is contacted with the upper surface of the roller, and the upper end of the sleeve is contacted with the upper surface of the roller ^Against The inner ring of the bearing is provided with a bearing, so that the roller is prevented from axially sliding on the roller shaft, and the positioning function is realized;

the roller and the roller shaft are connected by a pin.

The beneficial effects of the utility model are as follows: the needle tube positioning and conveying mechanism of the injector can achieve the aim of automatically feeding the needle tube and the needle head under the action of the elasticity of the spring by driving the roller to provide power through the motor. The mechanism can not only effectively avoid the problem of alignment error during manual feeding, but also avoid the problem that a person is stabbed by a needle head during working. The springs are arranged on the two sides of the sliding rail, so that the rollers can fasten the needle tube to be fed, the distance between the two rollers can be adjusted, and the needle tube feeding device is suitable for needle tubes with different specifications. So that the whole mechanism has more universality.

Drawings

FIG. 1 is a schematic view of the automatic needle feeding mechanism of the present utility model;

FIG. 2 is a front view of the automatic needle feeding mechanism of the present utility model;

fig. 3 is a bottom view of the automatic needle feeding mechanism of the present utility model.

In the figure, 1, a supporting side plate, 2, a right-angle connecting piece, 3, a spring, 4, a guide rail, 5, a sliding block, and 6, a roller support plate, 7, a sleeve, 8, a roller shaft, 9, a bearing, 10, a roller and 11, and a motor.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings.

The utility model will be described in detail below with reference to the drawings and the detailed description.

The utility model discloses a needle tube positioning and conveying mechanism of an injector, which has a structure shown in fig. 1-3 and comprises two opposite supporting side plates 1, wherein a guide rail 4 is fixedly connected between the two supporting side plates 1, two sliding blocks 5 are connected on the guide rail 4 in a sliding manner, two springs 3 are sleeved on the guide rail 4, one end of each spring is connected with one supporting side plate 1, and the other end of each spring is contacted with the adjacent sliding block 5; the two sliding blocks 5 are kept in fit under the action of spring force; a roller support plate 6 is correspondingly arranged below each sliding block 5, the roller support plate 6 supports a roller shaft 8 which is longitudinally distributed, and the roller support plate 6 supports the roller shaft 8; the roller shaft 8 is provided with rollers 10, the rollers 10 are concave, and a guide hole can be formed between the two rollers 10 which are in contact with each other; the guide hole is opposite to the needle tube separating mechanism.

The support side plates 1 are blind holes formed on both side plates thereof for supporting and fixing the guide rail 4.

The two rollers 10 are located on the same plane, one roller shaft 8 is used as a driving wheel and connected with a motor 11, and when the motor 11 runs, the roller shaft 8 is driven to rotate, so that the rollers 10 are driven to rotate.

Multiple sets of rollers may be provided along the direction of motion of the needle cannula.

Two sliding blocks 5 are adjacent and positioned in the middle of the guide rail 4.

The end of the roller shaft 8 is provided with a bearing 9, and the bearing 9 is embedded into the roller support plate 6 for positioning.

The roller shaft 8 is also nested with a sleeve 7, the lower end of the sleeve 7 is contacted with the upper surface of the roller 10, and the upper end of the sleeve is propped against the inner ring of the bearing 9, so that the roller 10 is prevented from axially sliding on the roller shaft 8, and the positioning function is realized;

the roller 10 and the roller shaft 8 are connected by a pin.

When the needle is separated, the motor 11 is controlled to make the two rollers 10 rotate in the same direction, when the needle cylinder with the needle is inserted between the two rollers 10, an operator slightly applies a pushing force, under the action of the pushing force, the needle cylinder contacts the rollers 10, the two rollers 10 can be separated to two sides, and meanwhile, the sliding block 5 is driven to be separated. The spring 3 is then compressed and the rollers 10 are separated by a maximum distance when the cartridge is fully inserted between the rollers 10. At this time, the spring 3 is compressed to generate elastic force to the slider 5, and the two rollers 10 clamp the syringe. Since a roller shaft 8 is connected to the motor 11, the cylinder is advanced by friction force. Two rollers 10 on the same side are mounted on the two roller support plates 6, so that the rollers 10 of the second row are separated following the rollers 10 of the first row. When the needle cylinder and the needle tube enter the needle tube separating mechanism, the motor 11 stops rotating, and the needle tube separating mechanism separates the needle tube from the needle head. The motor 11 is then reversed to withdraw the syringe.

Claims

1. The needle tube positioning and conveying mechanism of the injector is characterized by comprising two supporting side plates (1), wherein a guide rail (4) is fixedly connected between the two supporting side plates (1), two sliding blocks (5) are connected onto the guide rail (4) in a sliding manner, two springs (3) are sleeved on the guide rail (4), one end of each spring is connected with one supporting side plate (1), and the other end of each spring is contacted with the adjacent sliding block (5); a roller support plate (6) is correspondingly arranged below each sliding block (5), the roller support plates (6) support roller shafts (8) which are longitudinally distributed, rollers (10) are arranged on the roller shafts (8), the rollers (10) are concave, and a guide hole can be formed between two rollers (10) which are in contact with each other; the guide hole is opposite to the needle tube separating mechanism.

2. A syringe needle positioning and transferring mechanism according to claim 1, characterized in that two rollers (10) are located in the same plane, wherein one roller shaft (8) is connected as a driving wheel to a motor (11).

3. A syringe needle positioning and transferring mechanism according to claim 1, characterized in that two sliders (5) are adjacent and located in the middle of the guide rail (4).

4. Injector needle positioning and transferring mechanism according to claim 1, characterized in that the end of the roller shaft (8) is provided with a bearing (9), which bearing (9) is embedded in the roller support plate (6) for positioning.

5. The injector needle tube positioning and conveying mechanism according to claim 1, wherein the roller shaft (8) is further nested with a sleeve (7), the lower end of the sleeve (7) is in contact with the upper surface of the roller (10), and the upper end of the sleeve is abutted against the inner ring of the bearing (9), so that the roller (10) is prevented from axially sliding on the roller shaft (8) and is used for fixing the relative position of the roller (10).

6. Injector needle positioning and transferring mechanism according to claim 1, characterized in that the roller (10) and the roller shaft (8) are pinned.