CN217887858U

CN217887858U - A mixing tongs for external diagnostic equipment

Info

Publication number: CN217887858U
Application number: CN202221424029.9U
Authority: CN
Inventors: 张宁; 余农; 黄勇; 王永东; 胡亮
Original assignee: Chongqing Keysmile Biotechnology Co ltd
Current assignee: Chongqing Keysmile Biotechnology Co ltd
Priority date: 2022-05-20
Filing date: 2022-06-08
Publication date: 2022-11-25
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a blending gripper for in vitro diagnostic equipment, which comprises a supporting seat, wherein two groups of clamping arms are arranged on the supporting seat in a sliding way, and a spring is arranged between the two groups of clamping arms and used for driving the two groups of clamping arms to slide towards the directions close to each other; the supporting seat is provided with a motor, an output shaft of the motor is provided with a cam assembly, and the cam assembly is positioned between the two groups of clamping arms and used for driving the two groups of clamping arms to slide towards the direction away from each other. The utility model has the advantages that: the opening and closing processes of the two groups of clamping arms of the blending gripper are linear motions, and a sensor can be arranged in the moving direction of the clamping arms to judge whether the clamping arms move in place or not, so that whether the clamping arms are propped open in place or not is monitored through the sensor.

Description

A mixing tongs for external diagnostic equipment

Technical Field

The utility model relates to a medical science inspection analytical instrument technical field, concretely relates to mixing tongs for external diagnostic equipment.

Background

The fluorescence immunoassay technology is a common technical means in biomedical inspection, and has a series of advantages of high sensitivity, strong specificity, high detection speed, safety, stability and the like. The fluorescence immunoassay technology can be used for measuring low-content bioactive compounds, such as proteins (enzymes, receptors and antibodies), hormones (steroids, thyroid hormones and phthalein hormones), drugs, microorganisms and the like, and is widely applied to the detection fields of infectious disease detection, tumor marker detection, blood and cytology detection and the like at present.

In the process of analyzing and detecting the sample by utilizing the immunoassay device, the sample tube needs to be clamped and shaken up. In the prior art, a chinese utility model patent with a discourse number "CN214183191U" entitled "sample tube chuck for fluorescence immunoassay analyzer" discloses a sample tube chuck, which is rotated by a steering engine driving rotating part to force two sets of chuck fingers to spread, and then the sample tube can be clamped tightly under the action of an elastic element by releasing the driving force of the steering engine.

Sample pipe chuck among the above-mentioned patent document, two sets of chuck fingers are strutted by rotary part with rotatory mode, and synchronous pivoted triggers the piece motion path and is short, triggers piece and sensor mating reaction difficulty, can lead to sensor signal break-make bound unclear, consequently to whether it puts in place to judge the chuck finger through the sensor very hardly to rotatory mode centre gripping sample pipe.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a mixing tongs for external diagnostic equipment to solve and strut the not convenient for set up the technical problem of sensor that chuck finger leads to with rotatory mode.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a mixing tongs for external diagnostic equipment which the key lies in: the clamping device comprises a supporting seat, wherein two groups of clamping arms are arranged on the supporting seat in a sliding manner, and a spring is arranged between the two groups of clamping arms and used for driving the two groups of clamping arms to slide towards the mutually approaching direction; the motor is installed on the supporting seat, a cam assembly is arranged on an output shaft of the motor and located between the two groups of clamping arms, and the cam assembly is used for driving the two groups of clamping arms to slide towards the direction away from each other.

Preferably, the cam assembly comprises a rotating block and rolling bearings rotatably installed at two ends of the lower side of the rotating block, wherein the rotating block is fixedly sleeved on an output shaft of the motor, and outer rings of the rolling bearings are in rolling contact with the clamping arms.

Preferably, the inner sides of the two groups of clamping arms are respectively provided with a limiting baffle plate which is respectively used for limiting the rotation range of the motor in forward and reverse rotation.

Preferably, one group of the limiting blocking pieces is provided with a positioning part parallel to the inner side of the clamping arm, and a positioning groove is defined between the positioning part and the inner side of the corresponding clamping arm.

Preferably, the bottom of the supporting seat is provided with a guide rail, and the middle part of the clamping arm is provided with a sliding block which is connected with the guide rail in a sliding manner.

Preferably, the clamping arm is provided with an induction sheet, and the support seat is provided with a sensor on a sliding path of the induction sheet.

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

1. the opening and closing processes of the two groups of clamping arms of the blending gripper are linear motions, the displacement stroke is sufficient, and a sensor can be arranged in the moving direction of the clamping arms to judge whether the clamping arms move in place or not, so that whether the clamping arms are propped open in place or not is monitored through the sensor.

2. After the sample tube is clamped, the clamping force of the sample tube is completely provided by the spring, the sample tube clamping device belongs to a flexible clamping mode, the sample tube cannot be damaged, and the sample tube can still be clamped and cannot fall off after the system is powered off. In the shaking process, the sample tube is limited up and down by the limiting characteristics of the fingers of the hand grip, so that the sample tube is prevented from slipping.

Drawings

Fig. 1 is a schematic structural view of the blending gripper of the present invention;

fig. 2 is a schematic structural diagram of the blending hand grip after hiding the motor 2 and the upper bracket 11.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1, the blending gripper for in vitro diagnostic equipment structurally comprises a supporting seat 1, wherein two sets of clamping arms 2 are slidably mounted on the supporting seat 1, in this embodiment, the supporting seat 1 is composed of a bottom plate 12 and an upper bracket 11 fixed on the upper side of the bottom plate 12, a guide rail 1a is arranged on the lower side of the bottom plate 12, a slider 2c is arranged in the middle of the clamping arm 2, and the slider 2c is slidably mounted on the guide rail 1 a. Install motor 4 on the upper bracket 11, be provided with cam module 5 on the output shaft of motor 4, cam module 5 is located between two sets of centre gripping arms 2, still installs spring 3 between two sets of centre gripping arms 2.

Based on the above-mentioned structure of implementing of mixing tongs, its theory of operation is:

the motor 4 drives the cam assembly 5 to rotate, the cam assembly 5 forces the two groups of clamping arms 2 to overcome the resistance of the spring 3 and slide and expand towards two sides, then the chucks 2d at the lower ends of the two groups of clamping arms 2 are placed at the upper end of the sample tube 8, the motor 4 releases the driving force of the chucks, finally the two clamping arms 2 slide inwards under the action of the tension of the spring 3, and the chucks 2d can clamp the sample tube 8 inwards. This pipe 8's of sample in-process is being grabbed, and two sets of centre gripping arms 2 are the straight line and slide, so can monitor through setting up the sensor on the slip direction at two sets of centre gripping arms 2 whether the centre gripping arm 2 is effectively propped open. The method specifically comprises the following steps: all be equipped with response piece 7 on two sets of centre gripping arms 2, upper bracket 11 is provided with sensor 6 on the sliding path of two response pieces 7, and under the drive of motor 4, response piece 7 can be detected through sensor 6.

As shown in fig. 2, in the present embodiment, the cam assembly 5 includes a rotating block 5a, the rotating block 5a is fixedly sleeved on the output shaft of the motor 4, rolling bearings 5b are rotatably mounted at two ends of the lower side of the rotating block 5a, and the outer ring of the rolling bearing 5b is in rolling contact with the inner side of the upper end of the holding arm 2. When the rotary block 5a rotates, the rolling bearings 5b on both sides smoothly spread the clamp arm 2.

Further, referring to fig. 2, the inner sides of the two groups of clamping arms 2 are respectively provided with a limiting blocking piece 2b, one limiting blocking piece 2b is used for limiting the limit position of the motor 4 in the forward rotation, and the other limiting blocking piece 2b is used for limiting the limit position of the motor 4 in the reverse rotation. And one of the limiting blocking pieces 2b is provided with a positioning part 2b1 parallel to the inner side of the clamping arm 2, the positioning groove is defined by the covering of the positioning part 2b1 and the corresponding inner side of the clamping arm 2, in the process of clamping a sample tube, one rolling bearing 5b is positioned in the positioning groove, and the inner side of the rolling bearing 5b abuts against the positioning part 2b1, so that a relatively stable position relation can be formed between the clamping arm 2 and the cam component 5, and the sample tube can be conveniently and accurately positioned.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a mixing tongs for external diagnostic equipment which characterized in that: the clamping device comprises a supporting seat (1), wherein two groups of clamping arms (2) are arranged on the supporting seat (1) in a sliding mode, and a spring (3) is arranged between the two groups of clamping arms (2) and used for driving the two groups of clamping arms (2) to slide towards the direction close to each other; install motor (4) on supporting seat (1), be provided with cam subassembly (5) on the output shaft of motor (4), cam subassembly (5) are located two sets ofly between centre gripping arm (2) for the direction that two sets of centre gripping arm (2) of drive kept away from each other slides.

2. The blending grip for in-vitro diagnostic equipment according to claim 1, wherein: the cam assembly (5) comprises a rotating block (5 a) and rolling bearings (5 b) rotatably mounted at two ends of the lower side of the rotating block (5 a), wherein the rotating block (5 a) is fixedly sleeved on an output shaft of the motor (4), and outer rings of the rolling bearings (5 b) are in rolling contact with the clamping arms (2).

3. The blending grip for in-vitro diagnostic equipment according to claim 2, characterized in that: the inner sides of the two groups of clamping arms (2) are respectively provided with a limiting stop piece (2 b) which is respectively used for limiting the rotation range of the motor (4) in forward and reverse rotation.

4. The blending grip for in-vitro diagnostic equipment according to claim 3, wherein: one group of limiting blocking pieces (2 b) is provided with positioning parts (2 b 1) parallel to the inner sides of the clamping arms (2), and positioning grooves are formed between the positioning parts (2 b 1) and the inner sides of the corresponding clamping arms (2) in a surrounding mode.

5. The blending grip for in-vitro diagnostic equipment according to claim 1, wherein: the supporting seat (1) is provided with a guide rail (1 a) at the bottom, and the middle part of the clamping arm (2) is provided with a sliding block (2 c) which is connected with the guide rail (1 a) in a sliding way.

6. The blending grip for in-vitro diagnostic equipment according to claim 1, wherein: the clamping arm (2) is provided with an induction sheet (7), and the supporting seat (1) is provided with a sensor (6) on the sliding path of the induction sheet (7).