Sample injector for electrolyte analyzer

By designing an electrolyte analyzer injector with cleaning and injection components, the problems of contamination and automated injection during sample extraction were solved, enabling automatic sample cleaning and quantitative replacement, thus improving the accuracy and efficiency of detection.

CN223742494UActive Publication Date: 2025-12-30NANJING DIANNUO BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423321111.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-30
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing electrolyte analyzers are prone to contamination during sample extraction and cannot achieve automated sample introduction, which affects the test results.

Method used

A sample injector comprising a cleaning component and a sample injection component was designed. The automatic cleaning and wiping of the sample is achieved through a motor-driven rotating gear and rack plate structure, and the quantitative replacement and injection of the sample is achieved by combining an eccentric plate and a ratchet mechanism.

Benefits of technology

It enables automated sample cleaning and prevents contamination, ensuring the accuracy of test results and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223742494U_ABST
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Abstract

The utility model discloses a sample injector for an electrolyte analyzer, which comprises a supporting seat, and the top end of the supporting seat is fixedly connected with a cleaning component; the cleaning assembly comprises a cleaning box, and a mounting plate is fixedly connected to the top end of the cleaning box. After test tube sampling is completed, a second motor is started, the output end of the second motor drives a rotating plate to rotate, a sliding rod slides in a sliding groove, after rotating by a certain angle, a sampling tube moves to the position above a cleaning box, an electric lifting rod is started, and a lifting plate drives the sampling tube to move downwards and move into the cleaning box; an internal spraying pipe sprays and cleans the sample injection pipe, after cleaning is completed, a first motor is started, a rotating gear rotates, a rack plate rotates along with the rotating gear, a second rotating rod is driven to rotate, and meanwhile, the second rotating rod slides in a guide groove and drives an adjusting plate to rotate, so that a cleaning plate gets close to the sample injection pipe and wipes the surface of the sample injection pipe, and cleaning liquid is wiped dry; therefore, sample mixing and pollution are avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of analysis appearance, concretely is a kind of for electrolyte analysis appearance's sample feeder. BACKGROUND

[0002] Electrolyte analysis appearance is a kind of instrument for detecting electrolyte such as potassium ion, sodium ion, chloride ion, ion calcium and lithium ion in sample. It is widely used in clinical examination, and is mainly used to test the balance of electrolyte in human blood and body fluid, especially in patients who need a lot of balanced fluid, such as operation, burn, diarrhea, acute myocardial infarction, ion test and detection are very important.

[0003] According to the disclosure No. CN216870598U a kind of electrolyte analysis appearance automatic sample feeder, including support assembly, support assembly upper surface middle part one side is rotatably connected with rotating assembly, and rotating assembly includes the output end fixed connection of No. motor has carousel, the edge of carousel upper surface is evenly provided with several fixed holes, and fixed hole is placed with test tube, and the upper surface middle part of support assembly is fixedly connected with sample feeder component.Another side of the utility model is connected with sample feeder component by setting rotating assembly and sample feeder component, solve the existing one kind of electrolyte analysis appearance automatic sample feeder, when using, manually replace sampling test tube, not only easy to make sample in test tube be contaminated, and work efficiency is low and the existing one kind of electrolyte analysis appearance sample feeder, when using, cannot automatically extract sample, there is certain limitation problem in use.

[0004] Through the rotating assembly and sample feeder component and other structures described above, sample extraction can be realized, but when extracting different samples, a bent pipe needs to be inserted into different samples and then transported to the instrument body, so that the extraction of one sample also causes contamination when extracting another sample, thereby affecting the detection result. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of sample feeder for electrolyte analysis appearance to solve the problems raised in the above background.

[0006] In order to achieve the above object, the utility model provides following technical scheme: a kind of sample injector for electrolyte analyzer, including support seat, the top of the support seat is fixedly connected with cleaning assembly;The cleaning assembly includes washing tank, the top of the washing tank is fixedly connected with mounting plate, the middle part of the mounting plate is equipped with gap, the surface of the washing tank is fixedly connected with first motor, the output shaft of the first motor is fixedly sleeved with rotating gear, the surface of the rotating gear is engaged with rack plate, the top of the mounting plate is fixedly connected with first rotating rod, the surface of the first rotating rod is rotatably connected with adjusting plate, the middle part of the adjusting plate is equipped with guide slot, the inside of the guide slot is slidably connected with second rotating rod, the top of the adjusting plate is rotatably connected with cleaning plate, the side of the cleaning plate close to first rotating rod is fixedly connected with connecting spring, the end of the connecting spring away from cleaning plate is fixedly connected with connecting block.

[0007] As further preferred of the technical solution, the middle part of the mounting plate is provided with a groove, the rack plate is located inside the groove, the rotating gear is located inside the gap, the number of the first rotating rod is three, the number of the adjusting plate and the first rotating rod corresponds, the second rotating rod and the rack plate are fixedly connected, the cleaning plate is provided with cleaning cotton on the side away from the connecting spring, and the connecting block and the adjusting plate are fixedly connected.

[0008] As further preferred of the technical solution, the top of the support seat is fixedly connected with the analyzer body, the top of the analyzer body is fixedly connected with the pump body, the top of the pump body is fixedly connected with the connecting pipe, the top of the analyzer body is fixedly connected with the connecting frame, the bottom of the connecting frame is equipped with sliding slot, and the inside of the sliding slot is slidably connected with the sliding rod.

[0009] As further preferred of the technical solution, the top of the connecting frame is fixedly connected with the second motor, the output end of the second motor is fixedly connected with the rotating plate, the top of the rotating plate is fixedly connected with the electric lifting rod, the bottom end of the electric lifting rod is fixedly connected with the lifting plate, and the bottom of the lifting plate is provided with the sample injection tube.

[0010] As further preferred of the technical solution, the bottom of the support seat is fixedly connected with the third motor, the output end of the third motor is fixedly connected with the eccentric plate, the side of the eccentric plate away from the third motor is rotatably connected with the first pawl, the bottom end of the first pawl is fixedly connected with the first spring, and the end of the first spring away from the first pawl is fixedly connected with the first pad.

[0011] As further preferred of the technical solution, the bottom of the support seat is fixedly connected with the second pad, the side of the second pad away from the third motor is fixedly connected with the second spring, the end of the second spring away from the second pad is fixedly connected with the second pawl, and the middle part of the second pawl is rotatably connected with the rotating shaft.

[0012] As a further preferred of the technical solution, the middle part of the support seat is rotationally connected with a connecting rod, the surface of the connecting rod is fixedly connected with a ratchet wheel, the top end of the connecting rod is fixedly connected with a mounting rack, and the inside of the mounting rack is provided with a test tube.

[0013] The utility model provides a sample injector for electrolyte analyzer has the following beneficial effects:

[0014] (1) the utility model discloses a second motor is started after the sample injection to test tube is completed, and its output end drives the rotation of the rotation plate, and the sliding rod slides in the sliding slot, and after rotating a certain angle, the sample injection tube moves to the upper side of the cleaning tank, and the electric lifting rod is started, and the lifting plate drives the sample injection tube to move down and moves to the cleaning tank, and the internal spray pipe sprays and cleans the sample injection tube, and after cleaning is completed, the first motor is started, and the gear rotates, and the rack plate rotates along with it and drives the second rotating rod to rotate, and the second rotating rod slides in the guide groove and drives the adjusting plate to rotate, so that the cleaning plate is close to the sample injection tube and wipes the surface, and the cleaning liquid is wiped dry, so that sample mixing and pollution are avoided.

[0015] (2) the utility model discloses a third motor is started, and its output end drives the eccentric plate to do reciprocating arc line motion, and the eccentric plate is close to the side of the ratchet wheel and pushes the first pawl to move and rotate, and the first spring is stretched, and the first pawl pushes the ratchet wheel to rotate, and at the same time, the second pawl is rotated through the rotating shaft due to the rotation of the ratchet wheel, and the second spring is stretched, and after the rotation is finished, the second pawl is again in contact with the tooth groove end face of the ratchet wheel under the elastic force of the second spring, so that the quantitative rotation of the ratchet wheel is realized, to facilitate the replacement and sample injection of the sample. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic drawing of the utility model;

[0017] Figure 2 It is the structure schematic drawing of the utility model from the view;

[0018] Figure 3 It is the ratchet wheel structure schematic drawing of the utility model;

[0019] Figure 4 It is the structure schematic drawing of the connecting frame and sample injection tube of the utility model;

[0020] Figure 5 It is the cleaning assembly structure schematic drawing of the utility model;

[0021] Figure 6 It is the rotation gear and rack plate structure schematic drawing of the utility model.

[0022] In the figure: 1, support seat; 2, cleaning assembly; 201, cleaning box; 202, mounting plate; 203, notch; 204, first motor; 205, rotating gear; 206, rack plate; 207, first rotating rod; 208, adjusting plate; 209, guide groove; 210, second rotating rod; 211, cleaning plate; 212, connecting spring; 213, connecting block; 3, analyzer body; 4, pump body; 5, connecting pipe; 6, connecting frame; 7, sliding chute; 8, sliding rod; 9, second motor; 10, rotating plate; 11, electric lifting rod; 12, lifting plate; 13, sample inlet pipe; 14, third motor; 15, eccentric plate; 16, first pawl; 17, first spring; 18, first pad; 19, second pad; 20, second spring; 21, second pawl; 22, rotating shaft; 23, connecting rod; 24, ratchet wheel; 25, mounting frame; 26, test tube. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0024] The utility model provides technical schemes: as Figure 1 And Figure 6 As shown in the figure, in the embodiment, a sample injector for an electrolyte analyzer, comprising a support seat 1, the top end of the support seat 1 is fixedly connected with a cleaning assembly 2;The cleaning assembly 2 includes a cleaning box 201, the top end of the cleaning box 201 is fixedly connected with a mounting plate 202, the middle part of the mounting plate 202 is provided with a notch 203, the surface of the cleaning box 201 is fixedly connected with a first motor 204, the output shaft of the first motor 204 is fixedly sleeved with a rotating gear 205, the surface of the rotating gear 205 is engaged with a rack plate 206, the top end of the mounting plate 202 is fixedly connected with a first rotating rod 207, the surface of the first rotating rod 207 is rotatably connected with an adjusting plate 208, the middle part of the adjusting plate 208 is provided with a guide groove 209, the inside of the guide groove 209 is slidably connected with a second rotating rod 210, the top of the adjusting plate 208 is rotatably connected with a cleaning plate 211, the side of the cleaning plate 211 close to the first rotating rod 207 is fixedly connected with a connecting spring 212, one end of the connecting spring 212 away from the cleaning plate 211 is fixedly connected with a connecting block 213.

[0025] By starting the first motor 204 after the sample injection tube 13 is cleaned, the gear 205 rotates, the rack plate 206 rotates, and the second rotating rod 210 rotates, and the second rotating rod 210 slides in the guide groove 209 and rotates the adjusting plate 208 through the mutual limiting of the second rotating rod 210 and the guide groove 209, and drives the cleaning plate 211 to approach the sample injection tube 13, and the cleaning plate 211 contacts the sample injection tube 13 under the elastic force of the connecting spring 212, and wipes the surface of the sample injection tube 13 and the sample adhered to the surface, thereby avoiding mixing of multiple samples and interfering with the test results.

[0026] The middle part of the mounting plate 202 is provided with a groove, the rack plate 206 is located in the inside of the groove, the gear 205 is located in the aperture 203, the number of the first rotating rod 207 is three, the number of the adjusting plate 208 corresponds to the number of the first rotating rod 207, the second rotating rod 210 is fixedly connected with the rack plate 206, the cleaning plate 211 is provided with cleaning cotton away from one side of the connecting spring 212, and the connecting block 213 is fixedly connected with the adjusting plate 208.

[0027] The top end of the support base 1 is fixedly connected with an analyzer body 3, the top end of the analyzer body 3 is fixedly connected with a pump body 4, the top end of the pump body 4 is fixedly connected with a connecting pipe 5, the top end of the analyzer body 3 is fixedly connected with a connecting frame 6, the bottom of the connecting frame 6 is provided with a sliding groove 7, and the sliding groove 7 is slidably connected with a sliding rod 8.

[0028] By starting the second motor 9 after the sample injection is completed, the output end of the second motor 9 drives the rotating plate 10 to rotate, the sliding rod 8 slides in the sliding groove 7, and after rotating by a certain angle, the sample injection tube 13 moves to the upper side of the cleaning box 201, the electric lifting rod 11 is started, the lifting plate 12 drives the sample injection tube 13 to move downward and move into the cleaning box 201, and the internal spray pipe sprays and cleans the surface of the sample injection tube 13, thereby avoiding mixing of samples.

[0029] The top end of the connecting frame 6 is fixedly connected with the second motor 9, the output end of the second motor 9 is fixedly connected with the rotating plate 10, the top end of the rotating plate 10 is fixedly connected with the electric lifting rod 11, the bottom end of the electric lifting rod 11 is fixedly connected with the lifting plate 12, and the bottom of the lifting plate 12 is provided with the sample injection tube 13.

[0030] The bottom end of the support base 1 is fixedly connected with the third motor 14, the output end of the third motor 14 is fixedly connected with the eccentric plate 15, the side, away from the third motor 14, of the eccentric plate 15 is rotatably connected with the first pawl 16, the bottom end of the first pawl 16 is fixedly connected with the first spring 17, and the end, away from the first pawl 16, of the first spring 17 is fixedly connected with the first pad 18.

[0031] The bottom end of the support base 1 is fixedly connected with a second cushion block 19, the side of the second cushion block 19 away from the third motor 14 is fixedly connected with a second spring 20, the end of the second spring 20 away from the second cushion block 19 is fixedly connected with a second ratchet 21, and the middle part of the second ratchet 21 is rotatably connected with a rotating shaft 22.

[0032] By starting the third motor 14, the output end drives the eccentric plate 15 to do reciprocating arc motion, the eccentric plate 15 is close to one side of the ratchet wheel 24 and pushes the first ratchet 16 to move and rotate, the first spring 17 is stretched, the first ratchet 16 pushes the ratchet wheel 24 to rotate, meanwhile, the second ratchet 21 is rotated through the rotating shaft 22 due to the rotation of the ratchet wheel 24, the second spring 20 is stretched, and after the rotation is finished, the second ratchet 21 is in contact with the tooth groove end face of the ratchet wheel 24 again under the elastic force of the second spring 20, so that the quantitative rotation of the ratchet wheel 24 is realized, the replacement and sample feeding of the sample are facilitated.

[0033] The middle part of the support base 1 is rotatably connected with a connecting rod 23, the surface of the connecting rod 23 is fixedly connected with the ratchet wheel 24, the top end of the connecting rod 23 is fixedly connected with a mounting frame 25, and the inside of the mounting frame 25 is provided with a test tube 26.

[0034] The utility model provides a kind of sample feeder for electrolyte analyzer, and specific working principle is as follows:

[0035] In use, the test tube 26 and the sample are placed on the mounting frame 25, the electric lifting rod 11 is started, the lifting plate 12 drives the sample inlet tube 13 to move downwards, the sample inlet tube 13 is moved into the test tube 26, the pump body 4 is started, the sample in the test tube 26 is pumped into the connecting pipe 5 through the sample inlet tube 13 and is transported into the analyzer body 3, after the sample is pumped in, the sample inlet tube 13 is moved upwards under the driving of the electric lifting rod 11, the third motor 14 is started at this time, the output end drives the eccentric plate 15 to do reciprocating arc motion, the eccentric plate 15 is close to one side of the ratchet wheel 24 and pushes the first pawl 16 to move and rotate, the first spring 17 is stretched, the first pawl 16 pushes the ratchet wheel 24 to rotate, at the same time, the second pawl 21 is rotated through the rotating shaft 22 due to the rotation of the ratchet wheel 24, the second spring 20 is stretched, after the rotation is completed, the second pawl 21 is in contact with the tooth groove end face of the ratchet wheel 24 again under the elastic force of the second spring 20, so that the quantitative rotation of the ratchet wheel 24 is realized, the next test tube 26 is moved to the sample inlet position, the second motor 9 works in the process of adjusting the position of the test tube 26, the output end drives the rotating plate 10 to rotate, the slide rod 8 slides in the sliding groove 7, after rotating a certain angle, the sample inlet tube 13 moves above the cleaning tank 201, the electric lifting rod 11 is started, the lifting plate 12 drives the sample inlet tube 13 to move downwards and moves into the cleaning tank 201, the internal spray pipe sprays and cleans the surface of the sample inlet tube 13, after the cleaning is completed, the first motor 204 is started, the gear 205 is rotated, the rack plate 206 is rotated and drives the second rotating rod 210 to rotate, at the same time, the second rotating rod 210 slides in the guide groove 209 and rotates the adjusting plate 208 through the mutual limiting of the second rotating rod 210 and the guide groove 209, and drives the cleaning plate 211 to close to the sample inlet tube 13, under the elastic force of the connecting spring 212, the cleaning plate 211 is in contact with the sample inlet tube 13, in the process of moving the sample inlet tube 13 driven by the electric lifting rod 11, the cleaning plate 211 can wipe the cleaning liquid on the surface, so as to facilitate the sample inlet of the next sample.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sample injector for an electrolyte analyzer comprising a support seat (1), characterized in that: The top end of the support seat (1) is fixedly connected with a cleaning assembly (2); the cleaning assembly (2) comprises a cleaning box (201), the top end of the cleaning box (201) is fixedly connected with a mounting plate (202), the middle part of the mounting plate (202) is provided with an opening (203), the surface of the cleaning box (201) is fixedly connected with a first motor (204), the output shaft of the first motor (204) is fixedly sleeved with a rotating gear (205), the surface of the rotating gear (205) is engaged with a rack plate (206), the top end of the mounting plate (202) is fixedly connected with a first rotating rod (207), the surface of the first rotating rod (207) is rotatably connected with an adjusting plate (208), the middle part of the adjusting plate (208) is provided with a guide groove (209), the inside of the guide groove (209) is slidably connected with a second rotating rod (210), the top of the adjusting plate (208) is rotatably connected with a cleaning plate (211), the side of the cleaning plate (211) close to the first rotating rod (207) is fixedly connected with a connecting spring (212), one end of the connecting spring (212) away from the cleaning plate (211) is fixedly connected with a connecting block (213).

2. A sample injector for an electrolyte analyzer according to claim 1, characterized in that: The middle part of the mounting plate (202) is provided with a groove, the rack plate (206) is located inside the groove, the rotating gear (205) is located inside the opening (203), the number of the first rotating rod (207) is three, the number of the adjusting plate (208) corresponds to the number of the first rotating rod (207), the second rotating rod (210) is fixedly connected with the rack plate (206), the side of the cleaning plate (211) away from the connecting spring (212) is provided with cleaning cotton, the connecting block (213) is fixedly connected with the adjusting plate (208).

3. A sample injector for an electrolyte analyzer according to claim 1, characterized in that: The top end of the support seat (1) is fixedly connected with an analyzer body (3), the top end of the analyzer body (3) is fixedly connected with a pump body (4), the top end of the pump body (4) is fixedly connected with a connecting pipe (5), the top end of the analyzer body (3) is fixedly connected with a connecting frame (6), the bottom of the connecting frame (6) is provided with a sliding groove (7), the inside of the sliding groove (7) is slidably connected with a sliding rod (8).

4. A sample injector for an electrolyte analyzer according to claim 3, characterized in that: The top end of the connecting frame (6) is fixedly connected with a second motor (9), the output end of the second motor (9) is fixedly connected with a rotating plate (10), the top end of the rotating plate (10) is fixedly connected with an electric lifting rod (11), the bottom end of the electric lifting rod (11) is fixedly connected with a lifting plate (12), the bottom of the lifting plate (12) is provided with a sample inlet pipe (13).

5. A sample injector for an electrolyte analyzer according to claim 1, wherein: The bottom end of the support seat (1) is fixedly connected with a third motor (14), the output end of the third motor (14) is fixedly connected with an eccentric plate (15), the side of the eccentric plate (15) away from the third motor (14) is rotatably connected with a first pawl (16), the bottom end of the first pawl (16) is fixedly connected with a first spring (17), one end of the first spring (17) away from the first pawl (16) is fixedly connected with a first pad (18).

6. A sample injector for an electrolyte analyzer according to claim 1, characterized in that: The bottom end of the support seat (1) is fixedly connected with a second cushion block (19), one side of the second cushion block (19) away from the third motor (14) is fixedly connected with a second spring (20), one end of the second spring (20) away from the second cushion block (19) is fixedly connected with a second ratchet (21), and the middle part of the second ratchet (21) is rotatably connected with a rotating shaft (22).

7. A sample injector for an electrolyte analyzer according to claim 1, wherein: The middle part of the support seat (1) is rotatably connected with a connecting rod (23), the surface of the connecting rod (23) is fixedly connected with a ratchet wheel (24), the top end of the connecting rod (23) is fixedly connected with a mounting rack (25), and the inside of the mounting rack (25) is provided with a test tube (26).

Citation Information

Patent Citations

  • Automatic sampling device of electrolyte analyzer

    CN216870598U