CN215812837U - A analytical instrument that is used for anticollision institution of reagent needle and uses reagent needle anticollision institution - Google Patents
A analytical instrument that is used for anticollision institution of reagent needle and uses reagent needle anticollision institution Download PDFInfo
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- CN215812837U CN215812837U CN202122070832.9U CN202122070832U CN215812837U CN 215812837 U CN215812837 U CN 215812837U CN 202122070832 U CN202122070832 U CN 202122070832U CN 215812837 U CN215812837 U CN 215812837U
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- reagent needle
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Abstract
The utility model discloses an anti-collision mechanism for a reagent needle and an analysis instrument using the same, comprising: a reagent needle 5; a needle sliding base 1 for fixedly mounting a plurality of reagent needles 5; the needle limiting seat 3 can relatively slide to be close to or far away from the needle sliding seat 1; and the elastic component 4 is arranged between the needle sliding seat 1 and the needle limiting seat 3. The automatic transfer mechanical arm fixed connection needle limiting seat 3 of the analytical instrument can be lifted together with the needle sliding seat 1 and the reagent needle 5 on the needle sliding seat, is transferred and descends, when the reagent needle 5 is aligned to a test tube or other experimental utensils, the needle limiting seat 3 is driven to descend, when an accident that the descending distance is too large occurs, the reagent needle 5 contacts the bottom of the test tube or other experimental utensils, the reagent needle 5 and the needle sliding seat 1 stop descending by resistance, the needle limiting seat 3 continues descending, the elastic part 4 is compressed by stress, a buffering effect is achieved, and the reagent needle 5 and the test tube or other experimental utensils are prevented from being damaged by too large pressure.
Description
Technical Field
The utility model relates to the field of medical instruments, test instruments or life science instruments, in particular to a safety protection device for a reagent needle, and specifically relates to an anti-collision mechanism for the reagent needle and an analysis instrument using the same.
Background
In the later 20 th century, people had a more intuitive and profound understanding of the field of life sciences due to the development and application of scientific instruments, which are mainly analytical instruments. Genes, clones, biochips, etc. have become hot topics. Genetic engineering, tissue engineering, enzyme engineering, protein engineering, etc. are continuously enriching and modifying the traditional industries and forming new industries. The reagent needle is an indispensable part of life science instruments, life science instruments and experimental instruments. There are many cases where a reagent is required to touch the bottom of a vessel when the reagent is injected into the vessel to suck or spit the reagent. Although the automation equipment has measures such as installing a limit switch and controlling the stroke, the circuit components have the risk of service life or damage, and the software has the problems of halt, stability and the like. In these cases, damage to the reagent needle or damage to the reagent vessel can easily occur, resulting in damage or contamination of the inside of the instrument. In these cases, if the reagent is corrosive or toxic (e.g., bacteria, viruses, etc. are not inactivated), or if the reagent is difficult to obtain again (e.g., frozen eggs, cell clones, etc.), the protection of the reagent needle or the reagent needs to be enhanced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides an anti-collision mechanism for a reagent needle and an analysis instrument using the anti-collision mechanism for the reagent needle. The problems of poor stability, low precision and poor efficiency in the prior art are solved.
Specifically, the utility model discloses an anti-collision mechanism for a reagent needle, which is used for an analytical instrument and comprises:
a reagent needle;
the needle sliding seat is used for fixedly mounting a plurality of reagent needles;
the needle limiting seat can relatively slide to be close to or far away from the needle sliding seat;
the elastic component is arranged between the needle sliding seat and the needle limiting seat.
The automatic transfer mechanical arm fixed connection needle limiting seat of the analytical instrument can lift, transfer and descend together with a needle sliding seat and a reagent needle on the needle sliding seat, when the reagent needle is aligned with a test tube or other experimental utensils, the needle limiting seat is driven to descend, when an accident that the descending distance is too large occurs, the reagent needle contacts the bottom of the test tube or other experimental utensils, the reagent needle and the needle sliding seat are stopped to descend by resistance, the needle limiting seat continues to descend, the elastic part is stressed and compressed, the buffering effect is achieved, and the reagent needle and the test tube or other experimental utensils are prevented from being damaged by too large pressure.
Further, still include stabilizing component, be used for restricting the lateral shifting between needle sliding seat and the spacing seat of needle. The stabilizing component is used as a guide component between the needle sliding seat and the needle limiting seat, can be a guide rail structure or a guide groove structure which is mutually matched, and is used for ensuring that the needle sliding seat and the needle limiting seat can only move towards or away from each other along the vertical direction and can not do equidistant parallel dislocation motion, ensuring that the reagent needle can not be damaged due to the parallel dislocation motion of the needle sliding seat and the needle limiting seat, and also ensuring the stable and accurate positioning of transferring.
Furthermore, two ends of the elastic component are respectively connected with the needle limiting seat and the needle sliding seat.
Furthermore, the two ends of the elastic component are tightly connected with the needle limiting seat and the needle sliding seat, and the connection positions of the two ends of the elastic component are kept at the same vertical position.
Furthermore, the needle limiting seat is provided with through holes at positions corresponding to the reagent needles, and the reagent needles penetrate through the corresponding through holes in a one-to-one correspondence manner and can slide up and down along the through holes.
Furthermore, the elastic part is a plurality of spiral springs which are sleeved on the reagent needles in a one-to-one correspondence manner.
The pressure sensor is characterized by further comprising a sensor chip which is arranged on the needle sliding seat and positioned below the elastic component, and the sensor chip feeds back a pressure signal transmitted by the elastic component to a control device of the analysis instrument. When the pressure value rises, which means that the reagent needle has contacted the bottom of the test tube or other test vessel, the control device of the analytical instrument immediately instructs the transfer mechanical arm to stop descending, and the descending parameters can be further corrected.
The utility model also provides an analysis instrument using the reagent needle anti-collision mechanism, which comprises the reagent needle anti-collision mechanism for the analysis instrument.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.
FIG. 1 is a schematic structural diagram of a reagent needle collision prevention mechanism and an analyzer using the same according to the present invention.
Fig. 2 is a schematic diagram of an example of the structure of a reagent needle collision prevention mechanism and an analysis apparatus using the same according to the present invention.
Wherein the reference numbers referred to in the figures are as follows: needle sliding seat 1, stabilizing component 2, needle spacing seat 3, elastic component 4, reagent needle 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1: a collision avoidance mechanism for a reagent needle for use in an analytical instrument, comprising:
a needle sliding base 1 for fixedly mounting a plurality of reagent needles 5;
the needle limiting seat 3 can relatively slide to be close to or far away from the needle sliding seat 1;
and the elastic component 4 is arranged between the needle sliding seat 1 and the needle limiting seat 3.
The automatic transfer mechanical arm fixed connection needle limiting seat 3 of the analytical instrument can be lifted together with the needle sliding seat 1 and the reagent needle 5 on the needle sliding seat, is transferred and descends, when the reagent needle 5 is aligned to a test tube or other experimental utensils, the needle limiting seat 3 is driven to descend, when an accident that the descending distance is too large occurs, the reagent needle 5 contacts the bottom of the test tube or other experimental utensils, the reagent needle 5 and the needle sliding seat 1 stop descending by resistance, the needle limiting seat 3 continues descending, the elastic part 4 is compressed by stress, a buffering effect is achieved, and the reagent needle 5 and the test tube or other experimental utensils are prevented from being damaged by too large pressure.
In practical application, the needle slide base further comprises a stabilizing part 2 for limiting the transverse movement between the needle slide base 1 and the needle limiting base 3. The stabilizing member 2 is used as a guide member between the needle sliding seat 1 and the needle limiting seat 3, and can be a guide rail structure or a guide groove structure which is mutually matched, so that the needle sliding seat and the needle limiting seat can only move towards or away from each other along the vertical direction and can not move in parallel and staggered mode at equal intervals, the reagent needle 5 can not be damaged due to parallel and staggered movement of the needle sliding seat and the needle limiting seat, and the stable and accurate positioning of transferring can be ensured.
In practical application, two ends of the elastic component 4 are respectively connected with the needle limiting seat 3 and the needle sliding seat 1. The elastic component can be one, two or more, the needle limit seat can be in a shape structure shown in figure 1, and can also be a U-shaped support arm or a single arm, one end of the U-shaped support arm is used for being connected with the automatic transfer mechanical arm, and the other end (the U-shaped support arm is generally one end of two support arms) is connected with the needle sliding seat 1 through the stabilizing component 2 and the elastic component 4, so that the elastic component 4 and the needle limit seat 3 are not contacted with the reagent needle 5.
In some embodiments, the two ends of the elastic component 4 are tightly connected with the needle limiting seat 3 and the needle sliding seat 1, and the two connected positions keep the same vertical position. The elastic member 4 needs to be maintained in a freely vertical state and not twisted by a lateral external force.
In the example of fig. 1, the needle limiting seat 3 and the needle sliding seat 1 are similar in shape and structure, and are horizontally arranged in parallel up and down, through holes are formed at positions corresponding to the reagent needles 5, and the reagent needles 5 correspondingly penetrate through the corresponding through holes one by one and can slide up and down along the through holes.
In the example of fig. 1, the elastic member 4 is a plurality of coil springs, and is fitted over the reagent needles 5 in a one-to-one correspondence. This provides more consistent and uniform elastic cushioning and protection.
All there is a plurality of apertures with 5 adaptations of reagent needle on spacing seat 3 of needle and the needle sliding seat 1 for reagent needle 5 passes spacing seat 3 of needle earlier and then passes needle sliding seat 1, and spacing seat 3 of needle is connected through elastomeric element 4 with needle sliding seat 1, and when the needle point position of reagent needle 5 changed, because the elastic action makes reagent needle 5 drive restriction horizontal position's needle sliding seat 1 and takes place the displacement, also can drive reagent needle 5 and reset. The mechanism is formed simply, and it is convenient to change, and the situation that can be better protects equipment because poor stability's factor leads to damaging equipment and causing the pollution in the face of the automation equipment that is provided with stop device, uses the accurate information output that carries on of sensor chip, reduces the complexity of device, easily overhauls, prolongs the life of whole instrument, improves production efficiency, promotes stability, improves work efficiency.
In some embodiments, a sensor chip is further included, which is disposed on the needle sliding base 1 and below the elastic member 4, and feeds back the pressure signal conducted by the elastic member 4 to a control device of the analysis instrument. When the pressure value rises, which means that the reagent needle has contacted the bottom of the test tube or other test vessel, the control device of the analytical instrument immediately instructs the transfer mechanical arm to stop descending, and the descending parameters can be further corrected.
In practical application, as shown in fig. 2, the stabilizing member 2 may be a guide post with one end installed on the needle limiting seat 3, and the other end of the guide post passes through a small hole matched with the needle sliding seat 1 and keeps sliding normally, a stopper is added at the lower end of the guide post passing through the needle sliding seat 1, when the elastic member 4 is compressed by the pressure of the reagent needle 5 and the needle sliding seat 1, the needle sliding seat 1 and the reagent move up and down according to the direction of the guide post of the stabilizing member 2 by 5, when the reagent needle 5 leaves the bottom of the vessel for resetting, the elastic member 4 is lifted, the needle sliding seat 1 and the reagent needle 5 move down, and when the reagent needle 5 is reset to the limit position, the lower surface of the needle sliding seat 1 touches the lower end stopper of the guide post, thereby playing a role of protecting the elastic member 4 and the reagent needle 5.
In practical applications, the choice of the elastic member should be diversified, including the form of spring, elastic plastic, bendable rubber, etc. to provide the elastic force for the mechanism.
In practical application, as shown in fig. 2, the needle limiting seat 3 and the sliding needle seat 1 may be a planar device, each of which has a plurality of small holes adapted to the reagent needle 5, or a "back" shaped frame structure, a support member is installed at the position of the "back" shaped inner frame to make the reagent needle 5 firstly pass through the needle limiting seat 3 and then pass through the needle sliding seat 1, the needle limiting seat 3 is connected with the needle sliding seat 1 through an elastic member 4, the needle limiting seat 3 and the needle sliding seat 1 respectively limit the shaking, up-down sliding and horizontal position of the reagent needle 5, when the needle tip portion of the reagent needle 5 touches the bottom of the vessel, the reagent needle 5 drives the needle sliding seat 1 limiting the horizontal position to move upwards due to the elastic force, the elastic member 4 is compressed by the force, so that the reagent needle 5 and the needle sliding seat 1 move upwards, in another practical application using the same principle, the position of the reagent needle 5 can be fixed by the needle limiting seat 3, the needle sliding seat 1 and the analytical instrument are kept relatively static at the moment, when the needle tip part of the reagent needle 5 touches the bottom of a vessel, the reagent needle 5 drives the needle limiting seat 3 for limiting the horizontal position to move upwards due to the elastic action, the elastic component 4 is pulled up due to the action of force, the reagent needle 5 and the needle limiting seat 3 move upwards, the optimal height of the analytical instrument used in a matched mode is determined, and due to the guiding action of the stabilizing component 4, when the tip end of the reagent needle 5 leaves the bottom of the vessel, the elastic force of the elastic component 4 can enable the needle limiting seat 3 or the needle sliding seat 1 for limiting the position of the reagent needle 5 to drive the reagent needle 5 to reset.
The utility model also provides an analysis instrument using the reagent needle anti-collision mechanism, which comprises the reagent needle anti-collision mechanism for the analysis instrument.
It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.
Claims (8)
1. A collision avoidance mechanism for a reagent needle for use in an analytical instrument, comprising:
a reagent needle;
the needle sliding seat is used for fixedly mounting a plurality of reagent needles;
the needle limiting seat can relatively slide to be close to or far away from the needle sliding seat;
the elastic component is arranged between the needle sliding seat and the needle limiting seat.
2. The anti-collision mechanism for a reagent needle of claim 1, further comprising a stabilizing feature for limiting lateral movement between the needle slide block and the needle park block.
3. The anti-collision mechanism for the reagent needle according to claim 1, wherein two ends of the elastic component are respectively connected with the needle limiting seat and the needle sliding seat.
4. The anti-collision mechanism for the reagent needle as claimed in claim 3, wherein the two ends of the elastic component are tightly connected with the needle limiting seat and the needle sliding seat, and the connection positions of the two ends keep the same vertical position.
5. The anti-collision mechanism for the reagent needle as claimed in claim 3, wherein the needle limiting seat is provided with through holes at positions corresponding to the reagent needles, and the reagent needles correspondingly penetrate through the corresponding through holes one by one and can slide up and down along the through holes.
6. The anti-collision mechanism for the reagent needles according to claim 5, wherein the elastic member is a plurality of coil springs, and is sleeved on each reagent needle in a one-to-one correspondence manner.
7. The anti-collision mechanism for the reagent needle as claimed in claim 6, further comprising a sensor chip disposed on the needle sliding seat and below the elastic member, wherein the sensor chip feeds back a pressure signal transmitted by the elastic member to a control device of the analyzer.
8. An analytical instrument using a reagent needle collision prevention mechanism, comprising a reagent needle collision prevention mechanism for an analytical instrument according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122070832.9U CN215812837U (en) | 2021-08-30 | 2021-08-30 | A analytical instrument that is used for anticollision institution of reagent needle and uses reagent needle anticollision institution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122070832.9U CN215812837U (en) | 2021-08-30 | 2021-08-30 | A analytical instrument that is used for anticollision institution of reagent needle and uses reagent needle anticollision institution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215812837U true CN215812837U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122070832.9U Active CN215812837U (en) | 2021-08-30 | 2021-08-30 | A analytical instrument that is used for anticollision institution of reagent needle and uses reagent needle anticollision institution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215812837U (en) |
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2021
- 2021-08-30 CN CN202122070832.9U patent/CN215812837U/en active Active
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