Sampling mechanism and flushing components of fully automatic urine specific protein analyzer

Abstract

The present invention provides a sampling mechanism and a flushing component of a fully automatic urine specific protein analyzer, which belongs to the technical field of medical devices and is intended to solve the problems of low sampling efficiency, large reagent dosage and poor cleaning effect of the existing specific protein analyzer. The sampling mechanism and flushing component of the fully automatic urine specific protein analyzer, the sampling mechanism includes a horizontal slide, a vertical slide, a sample suction needle fixing frame, and a sample suction needle component, the vertical slide is slidably connected to the horizontal slide, the sample suction needle fixing frame is slidably connected to the vertical slide, the sample suction needle component is fixedly arranged on the sample suction needle fixing frame, the flushing component includes a flushing pipe, a flushing pipe built-in component, a water inlet pipe, and a waste discharge pipe, the lower end of the flushing pipe is connected to the waste discharge pipe, a waste discharge groove is provided in the flushing pipe, the flushing pipe built-in component is fixedly arranged in the waste discharge groove, the flushing pipe built-in component is provided in the flushing pipe built-in component, the flushing pipe built-in component and the side wall of the flushing pipe are respectively provided with a water inlet pipe mounting groove, and the top of the flushing groove is lower than the top of the waste discharge groove.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a sampling mechanism and a flushing component of a full-automatic urine specific protein analyzer. Background Art

[0002] The specific protein analyzer is an analytical instrument used to measure the content of specific proteins in human body fluids. It uses the principle of laser scattering turbidimetry to measure the turbidity of the solution after the reaction of the sample and reagent in the reaction cup to determine the level of specific protein content in the sample. The level of specific protein content reflects the corresponding state of the patient's body and provides effective reference data for doctors' diagnosis.

[0003] Most of them are semi-automatic specific protein analyzers, and their typical feature is that they need to be assisted by a large amount of manual operation. Therefore, there are problems such as low efficiency, large errors, large reagent usage, and high cost. They often require inspectors with high professional skills to operate. And currently, in the analysis device of liquid samples, when the sampling needle absorbs the sample or reagent, the sample will remain on the inner and outer surfaces of the sampling needle, so the sampling needle needs to be cleaned to avoid interference with the next sample test. The existing specific protein analyzers have poor cleaning effects, large carryover contamination, cumbersome operation, and a long time. Summary of the invention

[0004] The present invention aims to solve the above technical problems and provide a sampling mechanism and a flushing component of a fully automatic urine specific protein analyzer with high sampling efficiency, low reagent usage and good cleaning effect.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] The sampling mechanism and flushing component of the fully automatic urine specific protein analyzer are arranged on a bottom plate. The sampling mechanism includes a horizontal slide, a vertical slide, a sample suction needle fixing frame, and a sample suction needle assembly. The vertical slide is slidably connected to the horizontal slide, the sample suction needle fixing frame is slidably connected to the vertical slide, and the sample suction needle assembly is fixedly arranged on the sample suction needle fixing frame. The flushing component includes a flushing pipe, a flushing pipe built-in component, a water inlet pipe, and a waste discharge pipe. The lower end of the flushing pipe is connected to the waste discharge pipe. A waste discharge trough is provided in the flushing pipe, and the bottom of the waste discharge trough is communicated with the waste discharge pipe. The flushing pipe built-in component is fixedly arranged in the waste discharge trough. A flushing trough is provided in the flushing pipe built-in component. Water inlet pipe mounting grooves are respectively provided on the flushing pipe built-in component and the side walls of the flushing pipe. The water inlet pipe passes through the water inlet pipe mounting groove of the flushing pipe and the water inlet pipe mounting groove of the flushing pipe built-in component in sequence, and is connected to the flushing trough. The top of the flushing trough is lower than the top of the waste discharge trough.

[0007] Preferably, the horizontal slide comprises a long slide groove, a guide rail, a slider, a connecting block, a vertical slide mounting plate, a screw nut mechanism, and a screw motor. The long slide groove is horizontal and arranged in the front-to-back direction, the guide rail is installed on the long slide groove, the guide rail is slidably connected to the slider, the connecting block is fixedly connected to the slider, the screw nut mechanism comprises a screw and a screw nut, the screw and the screw nut are transmission-connected, the axial direction of the screw is along the length direction of the guide rail, the screw motor is connected to the screw, the connecting block is provided with a through groove for the screw to pass through, the connecting block is provided with a mounting groove for mounting the screw nut, the screw nut is fixedly installed in the mounting groove, the vertical slide mounting plate is fixedly connected to the connecting block, and the vertical slide is mounted on the vertical slide mounting plate.

[0008] Preferably, a travel switch 1 is fixedly provided at one end of the long slide groove 1, and the travel switch 1 includes a travel switch actuating portion. When the vertical slide mounting plate is pressed onto the travel switch actuating portion, the travel switch 1 is actuated.

[0009] Preferably, the vertical slide comprises two long slide grooves, two guide rails, two sliders, two connecting blocks, two lead screw nut mechanisms, and two lead screw motors. The two long slide grooves are vertically arranged, and the two guide rails are installed on the two long slide grooves. The two guide rails are slidably connected to the two sliders, and the two sliders are fixedly connected to the two connecting blocks. The lead screw nut mechanism comprises two lead screws and two lead screw nuts. The two lead screws are transmission-connected with the two lead screw nuts. The axial direction of the two lead screws is along the length direction of the two guide rails. The two lead screw motors are connected to the two lead screws. The two connecting blocks are provided with two through grooves for the two lead screws to pass through, and the two connecting blocks are provided with two mounting grooves for mounting the two lead screw nuts, and the two lead screw nuts are fixedly mounted in the two mounting grooves.

[0010] Preferably, a travel switch 2 is fixedly provided at one end of the long slide groove 2, the travel switch 2 includes a travel switch 2 actuating portion, and a travel switch 2 baffle is fixedly provided on the connecting block 2. When the travel switch 2 baffle blocks the travel switch 2 actuating portion, the travel switch 2 is actuated.

[0011] Preferably, the sample suction needle assembly includes a sample suction needle tube, a sample suction needle tube joint, a reagent circulation tube, a tube joint nut, and a tube pressure head. The top of the sample suction needle tube joint is provided with a tube joint nut mounting groove, the bottom of the sample suction needle tube joint is provided with a sample suction needle tube groove connected to the tube joint nut mounting groove, the sample suction needle tube is installed in the sample suction needle tube groove, the reagent circulation tube is fixedly connected to the tube pressure head, the tube pressure head is threadedly connected to the lower end of the tube joint nut, the tube joint nut is provided with a through groove for the reagent circulation tube to pass through, the tube joint nut is threadedly connected to the tube joint nut mounting groove and the tube pressure head is pressed into the tube joint nut mounting groove, and the sample suction needle tube groove is connected to the reagent circulation tube.

[0012] Preferably, the sample suction needle fixing frame includes a vertical plate and a horizontal plate, the lower end of the vertical plate is fixedly connected to the connecting block 2, the rear end of the horizontal plate is fixedly connected to the top of the vertical plate, and the sample suction needle assembly is fixedly arranged at the front end of the horizontal plate.

[0013] Preferably, the flushing assembly further comprises a flushing pipe support and a flushing pipe crossbeam, the bottom of the flushing pipe support is fixedly mounted on the base plate, the flushing pipe crossbeam is fixedly mounted on the flushing pipe support, and the flushing pipe is fixedly mounted on the flushing pipe crossbeam.

[0014] Preferably, the flushing assembly further comprises a waste discharge pipe clamp, wherein the waste discharge pipe clamp is arranged at the end of the waste discharge pipe, and the waste discharge pipe clamp is clamped in the flushing pipe.

[0015] After adopting the above technical solution, the present invention has the following advantages:

[0016] The sampling mechanism and flushing assembly of the fully automatic urine specific protein analyzer are as follows: urine sample is sucked into the sampling needle assembly from the sampling needle tube, and then discharged from the sampling needle assembly to the sampling cup; reagent flows into the sampling needle assembly from the reagent flow tube, and then discharged from the sampling needle assembly to the sampling cup; the sampling efficiency is high and the reagent consumption is small; the sampling needle tube is extended into the flushing slot of the flushing assembly for flushing; the water inlet pipe sends water to the flushing slot; the sampling needle tube absorbs and discharges water to clean the inner wall and outer wall of the end of the sampling needle tube; the water in the flushing slot overflows and enters the waste discharge slot; the waste water is discharged from the waste discharge pipe; the cleaning effect of the sampling needle tube is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the sampling mechanism and flushing component of the fully automatic urine specific protein analyzer of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the sampling mechanism;

[0019] Figure 3 It is the structural schematic diagram of the horizontal slide;

[0020] Figure 4 It is a structural schematic diagram of a vertical slide;

[0021] Figure 5 It is a structural schematic diagram of the sample aspiration needle assembly;

[0022] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0023] Figure 7 It is a schematic diagram of the structure of the flushing component;

[0024] Figure 8 is a side view of the flushing assembly;

[0025] In the figure:

[0026] 1- Bottom plate;

[0027] 17-horizontal slide; 171-long slide one; 172-guide rail one; 173-slider one; 174-connecting block one; 175-vertical slide mounting plate; 176-screw nut mechanism one; 1761-screw one; 1762-screw nut one; 177-screw motor one; 179-bearing cover plate one; 178-travel switch one; 1710-bearing one; 1711-motor cover plate one;

[0028] 18-vertical slide; 181-long slide two; 182-guide rail two; 183-slider two; 184-connecting block two; 185-screw nut mechanism two; 1851-screw two; 1852-screw nut two; 186-screw motor two; 187-travel switch two; 188-bearing cover plate two; 189-bearing two; 1810-motor cover plate two;

[0029] 19- sample suction needle fixing frame; 191- vertical plate; 192- horizontal plate;

[0030] 20-sample suction needle assembly; 201-sample suction needle tube; 202-sample suction needle tube joint; 2021-tube joint nut installation groove; 2022-sample suction needle tube groove; 203-reagent circulation tube; 204-tube joint nut; 205-tube pressure head;

[0031] 21-flushing pipe support; 22-flushing pipe crossbeam; 23-flushing pipe; 231-waste discharge trough; 24-flushing pipe internal parts; 241-flushing trough; 25-water inlet pipe; 26-waste discharge pipe; 27-waste discharge pipe clamp. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figure 1As shown, the sampling mechanism and flushing component of the fully automatic urine specific protein analyzer are arranged on the base plate 1.

[0034] like Figure 2 As shown, the sampling mechanism includes a horizontal slide 17, a vertical slide 18, a sample suction needle fixing frame 19, and a sample suction needle assembly 20.

[0035] like Figure 3 As shown, the horizontal slide includes a long slide groove 171, a guide rail 172, a slider 173, a connecting block 174, a vertical slide mounting plate 175, a screw nut mechanism 176, a screw motor 177, and a travel switch 178.

[0036] The long slide groove 171 is horizontally arranged in the front-rear direction, and the guide rail 172 is installed on the long slide groove 171. The guide rail 172 is slidably connected with the slider 173, and the connecting block 174 is fixedly connected with the slider 173.

[0037] The lead screw nut mechanism 176 includes a lead screw 1761 and a lead screw nut 1762, which are connected in transmission. A bearing sealing plate 179 is provided at the front end of the long slide 171, and a bearing 1710 is installed on the bearing sealing plate 179. The front end of the lead screw 1761 is installed on the bearing sealing plate 179 through the bearing 1710, and the rear end of the lead screw 1761 is connected to the lead screw motor 177.

[0038] The connecting block 174 is provided with a through groove 1 for the screw 1761 to pass through, and the connecting block 174 is provided with a mounting groove 1 for mounting the screw nut 1762, and the screw nut 1762 is fixedly mounted in the mounting groove 1.

[0039] A motor sealing plate 1711 is provided at the connection between the lead screw motor 177 and the lead screw 1761.

[0040] A travel switch 178 is fixedly provided at the lead screw motor 1761. The vertical slide mounting plate 175 is fixedly connected to the connecting block 174, and the travel switch 178 includes a travel switch actuating portion. When the vertical slide mounting plate 174 is pressed onto the travel switch actuating portion, the travel switch 178 is actuated.

[0041] The vertical slide mounting plate 174 has an L-shaped cross section, and the vertical slide 18 is mounted on the vertical slide mounting plate 174 .

[0042] like Figure 4 As shown, the vertical slide 18 includes a second long slide groove 181, a second guide rail 182, a second slider 183, a second connecting block 184, a second screw nut mechanism 185, a second screw motor 186, and a second travel switch 187.

[0043] The second long slide groove 181 is vertically arranged, the second guide rail 182 is installed on the second long slide groove 181, the second guide rail 182 is slidably connected to the second slider 183, and the second slider 183 is fixedly connected to the second connecting block 184.

[0044] The screw nut mechanism 185 includes a screw 1851 and a screw nut 1852, which are in transmission connection with each other. A bearing seal plate 188 is provided at the lower end of the long slide 181, and a bearing 189 is installed on the bearing seal plate 188. The bearing seal plate 188 and the long slide 181 are fixedly installed on the vertical slide mounting plate 174.

[0045] The second connecting block 184 is provided with a through slot 2 for the second lead screw 1851 to pass through, and the second connecting block 184 is provided with a mounting slot 2 for mounting the second lead screw nut 1852, and the second lead screw nut 1852 is fixedly mounted in the mounting slot 2. The lower end of the second lead screw 1851 is mounted on the second bearing sealing plate 188 through the second bearing 189, and the upper end of the second lead screw 1851 is connected to the second lead screw motor 186.

[0046] A motor sealing plate 1810 is provided at the connection between the screw motor 186 and the screw 1851.

[0047] A second travel switch 187 is fixedly arranged at the second bearing sealing plate 188, and the second travel switch 187 includes a second travel switch actuating portion. A second travel switch baffle 1811 is fixedly arranged on the second connecting block 184, and when the second travel switch baffle 1811 blocks the second travel switch actuating portion, the second travel switch 187 is actuated.

[0048] The sample suction needle fixing frame 19 includes a vertical plate 191 and a horizontal plate 192 . The lower end of the vertical plate 191 is fixedly connected to the connecting block 184 , and the rear end of the horizontal plate 192 is fixedly connected to the top of the vertical plate 191 .

[0049] The sample aspiration needle assembly 20 is fixedly disposed at the front end of the horizontal plate 192 .

[0050] like Figure 5-6 As shown, the sample aspirating needle assembly 20 includes a sample aspirating needle tube 201 , a sample aspirating needle tube connector 202 , a reagent flow tube 203 , a tube connector nut 204 , and a tube press head 205 .

[0051] The top of the sample suction needle pipe joint 202 is provided with a pipe joint nut installation groove 2021. The bottom of the sample suction needle pipe joint 202 is provided with a sample suction needle pipe groove 2022 connected with the pipe joint nut installation groove 2021, and the sample suction needle tube 201 is installed in the sample suction needle pipe groove 2022.

[0052] The reagent circulation tube 203 is fixedly connected to the tube pressure head 205, and the tube pressure head 205 is threadedly connected to the lower end of the tube joint nut 204. The tube joint nut 204 is provided with a through groove for the reagent circulation tube 203 to pass through, and the tube joint nut 204 is threadedly connected to the tube joint nut installation groove 2021 and the tube pressure head 205 is press-fitted into the tube joint nut installation groove 2021. The sample suction needle tube groove 2022 is communicated with the reagent circulation tube 203.

[0053] like Figure 7-8 As shown, the flushing assembly includes a flushing pipe support 21, a flushing pipe crossbeam 22, a flushing pipe 23, a flushing pipe built-in component 24, a water inlet pipe 25, a waste pipe 26, and a waste pipe clamp 27.

[0054] The bottom of the flushing pipe support 21 is fixedly mounted on the base plate 1 , the flushing pipe cross beam 22 is fixedly mounted on the flushing pipe support 21 , and the flushing pipe 23 is fixedly mounted on the flushing pipe cross beam 22 .

[0055] The lower end of the flushing pipe 23 passes through the flushing pipe cross beam 22 and is connected to the waste discharge pipe 26. A waste discharge pipe clamp 27 is provided at the end of the waste discharge pipe 26, and the waste discharge pipe clamp 27 is clamped in the flushing pipe 23.

[0056] The flushing pipe 23 is provided with a waste discharge groove 231, the bottom of which is communicated with the waste discharge pipe 26, and the flushing pipe built-in component 24 is fixedly disposed in the waste discharge groove 231. The flushing pipe built-in component 24 is provided with a flushing groove 241.

[0057] The flushing pipe built-in component 24 and the side wall of the flushing pipe 23 are respectively provided with water inlet pipe installation grooves, and the water inlet pipe 25 passes through the water inlet pipe installation groove of the flushing pipe 23 and the water inlet pipe installation groove of the flushing pipe built-in component 24 in sequence, and is connected to the flushing groove 241. The top of the flushing groove 241 is lower than the top of the waste discharge groove 231.

[0058] The urine sample is sucked into the sample suction needle assembly from the sample suction needle tube, and then discharged from the sample suction needle assembly to the sampling cup. The reagent flows into the sample suction needle assembly from the reagent flow tube, and then is discharged from the sample suction needle assembly to the sampling cup. The sampling efficiency is high and the reagent consumption is small. The sample suction needle tube is extended into the flushing slot of the flushing assembly for flushing. The water inlet pipe sends water to the flushing slot. The sample suction needle tube absorbs and discharges water to clean the inner wall and outer wall of the end of the sample suction needle tube. The water in the flushing slot overflows and enters the waste discharge slot. The waste water is discharged from the waste discharge pipe. The cleaning effect of the sample suction needle tube is good.

[0059] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art may make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the claims attached to the present invention.

Claims

1. The sampling mechanism and flushing component of the fully automatic urine protein analyzer is characterized in that: The sampling mechanism and the flushing assembly are arranged on a bottom plate (1); the sampling mechanism comprises a horizontal slide (17), a vertical slide (18), a sample suction needle fixing frame (19), and a sample suction needle assembly (20); the vertical slide (18) is slidably connected to the horizontal slide (17); the sample suction needle fixing frame (19) is slidably connected to the vertical slide (18); the sample suction needle assembly (20) is fixedly arranged on the sample suction needle fixing frame (19); the flushing assembly comprises a flushing pipe (23), a flushing pipe built-in component (24), a water inlet pipe (25), and a waste pipe (26); the lower end of the flushing pipe (23) is connected to the waste pipe (26); A waste discharge trough (231) is provided in the washing pipe (23), the bottom of the waste discharge trough (231) is communicated with the waste discharge pipe (26), the washing pipe built-in component (24) is fixedly arranged in the waste discharge trough (231), a washing trough (241) is provided in the washing pipe built-in component (24), a water inlet pipe mounting groove is provided on the side wall of the washing pipe built-in component (24) and the washing pipe (23), the water inlet pipe (25) passes through the water inlet pipe mounting groove of the washing pipe (23) and the water inlet pipe mounting groove of the washing pipe built-in component (24) in sequence, and is communicated with the washing trough (241), the top of the washing trough (241) is lower than the top of the waste discharge trough (231); The sample suction needle assembly (20) comprises a sample suction needle tube (201), a sample suction needle tube joint (202), a reagent circulation tube (203), a tube joint nut (204), and a tube pressure head (205); a tube joint nut installation groove (2021) is provided at the top of the sample suction needle tube joint (202); a sample suction needle tube groove (2022) connected to the tube joint nut installation groove (221) is provided at the bottom of the sample suction needle tube joint (202); the sample suction needle tube (201) is installed in the sample suction needle tube groove (2022); The reagent circulation tube (203) is fixedly connected to the tube pressure head (205), and the tube pressure head (205) is threadedly connected to the lower end of the tube joint nut (204). The tube joint nut (204) is provided with a through groove for the reagent circulation tube (203) to pass through. The tube joint nut (204) is threadedly connected to the tube joint nut installation groove (2021) and the tube pressure head (205) is press-fitted into the tube joint nut installation groove (2021). The sample suction needle tube groove (2022) is communicated with the reagent circulation tube (203).

2. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 1, characterized in that: The horizontal slide comprises a long slide groove (171), a guide rail (172), a slider (173), a connecting block (174), a vertical slide mounting plate (175), a lead screw nut mechanism (176), and a lead screw motor (177). The long slide groove (171) is horizontal and arranged in the front-to-back direction. The guide rail (172) is installed on the long slide groove (171). The guide rail (172) is slidably connected to the slider (173). The connecting block (174) is fixedly connected to the slider (173). The lead screw nut mechanism (176) comprises a lead screw (1761) and a lead screw nut (1762). The lead screw (1761) The guide rail 1 (172) is connected to the guide rail 1 (1761) by transmission, the axial direction of the guide rail 1 (1761) is along the length direction of the guide rail 1 (172), the guide rail motor 1 (177) is connected to the guide rail 1 (1761), the connecting block 1 (174) is provided with a through groove 1 for the guide rail 1 (1761) to pass through, the connecting block 1 (174) is provided with a mounting groove 1 for mounting the guide rail 1 (1762), the guide rail 1 (1762) is fixedly mounted in the mounting groove 1, the vertical slide mounting plate (175) is fixedly connected to the connecting block 1 (174), and the vertical slide (18) is mounted on the vertical slide mounting plate (175).

3. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 2, characterized in that: A travel switch (178) is fixedly provided at one end of the long slide groove (171), and the travel switch (178) includes a travel switch actuating portion. When the vertical slide mounting plate (175) is pressed onto the travel switch actuating portion, the travel switch (178) is actuated.

4. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 2 or 3, characterized in that: The vertical slide (18) comprises a second long slide groove (181), a second guide rail (182), a second slider (183), a second connecting block (184), a second screw nut mechanism (185), and a second screw motor (186). The second long slide groove (181) is vertically arranged, the second guide rail (182) is installed on the second long slide groove (181), the second guide rail (182) is slidably connected to the second slider (183), the second slider (183) is fixedly connected to the second connecting block (184), and the second screw nut mechanism (185) comprises a second screw (1851 ) and a lead screw nut 2 (1852), the lead screw 2 (1851) and the lead screw nut 2 (1852) are transmission-connected, the axial direction of the lead screw 2 (1851) is along the length direction of the guide rail 2 (182), the lead screw motor 2 (186) is connected to the lead screw 2 (1851), the connecting block 2 (184) is provided with a through groove 2 for the lead screw 2 (1851) to pass through, the connecting block 2 (184) is provided with a mounting groove 2 for mounting the lead screw nut 2 (1852), and the lead screw nut 2 (1852) is fixedly mounted in the mounting groove 2.

5. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 4, characterized in that: A second travel switch (187) is fixedly provided at one end of the second long slide groove (181), the second travel switch (187) comprising a second travel switch actuating portion, and a second travel switch baffle (1811) is fixedly provided on the second connecting block (184), and when the second travel switch baffle (1811) blocks the second travel switch actuating portion, the second travel switch (187) is actuated.

6. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 4, characterized in that: The sample suction needle fixing frame (19) comprises a vertical plate (191) and a horizontal plate (192), wherein the lower end of the vertical plate (191) is fixedly connected to the second connecting block (184), the rear end of the horizontal plate (192) is fixedly connected to the top of the vertical plate (191), and the sample suction needle assembly (20) is fixedly arranged at the front end of the horizontal plate (192).

7. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 1, characterized in that: The flushing assembly further comprises a flushing pipe support (21) and a flushing pipe crossbeam (22); the bottom of the flushing pipe support (21) is fixedly mounted on the base plate (1); the flushing pipe crossbeam (22) is fixedly mounted on the flushing pipe support (21); and the flushing pipe (23) is fixedly mounted on the flushing pipe crossbeam (22).

8. The sampling mechanism and flushing assembly of the fully automatic urine protein analyzer according to claim 1, characterized in that: The flushing assembly further comprises a waste discharge pipe clamp (27), wherein the waste discharge pipe clamp (27) is arranged at the end of the waste discharge pipe (26), and the waste discharge pipe clamp (27) is clamped in the flushing pipe (23).

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